diff --git a/node_modules/vue-router/LICENSE b/node_modules/vue-router/LICENSE
new file mode 100644
index 0000000..888e2cc
--- /dev/null
+++ b/node_modules/vue-router/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2013-present Evan You
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/node_modules/vue-router/README.md b/node_modules/vue-router/README.md
new file mode 100644
index 0000000..7793f49
--- /dev/null
+++ b/node_modules/vue-router/README.md
@@ -0,0 +1,65 @@
+# vue-router [![Build Status](https://img.shields.io/circleci/project/github/vuejs/vue-router/dev.svg)](https://circleci.com/gh/vuejs/vue-router)
+
+> This is vue-router 2.0 which works only with Vue 2.0. For the 1.x router see the [1.0 branch](https://github.com/vuejs/vue-router/tree/1.0).
+
+### Introduction
+
+`vue-router` is the official router for [Vue.js](http://vuejs.org). It deeply integrates with Vue.js core to make building Single Page Applications with Vue.js a breeze. Features include:
+
+- Nested route/view mapping
+- Modular, component-based router configuration
+- Route params, query, wildcards
+- View transition effects powered by Vue.js' transition system
+- Fine-grained navigation control
+- Links with automatic active CSS classes
+- HTML5 history mode or hash mode, with auto-fallback in IE9
+- Customizable Scroll Behavior
+
+Get started with the [documentation](http://vuejs.github.io/vue-router), or play with the [examples](https://github.com/vuejs/vue-router/tree/dev/examples) (see how to run them below).
+
+### Development Setup
+
+``` bash
+# install deps
+npm install
+
+# build dist files
+npm run build
+
+# serve examples at localhost:8080
+npm run dev
+
+# lint & run all tests
+npm test
+
+# serve docs at localhost:8080
+npm run docs
+```
+
+## Questions
+
+For questions and support please use the [Discord chat server](https://chat.vuejs.org) or [the official forum](http://forum.vuejs.org). The issue list of this repo is **exclusively** for bug reports and feature requests.
+
+## Issues
+
+Please make sure to read the [Issue Reporting Checklist](https://github.com/vuejs/vue/blob/dev/.github/CONTRIBUTING.md#issue-reporting-guidelines) before opening an issue. Issues not conforming to the guidelines may be closed immediately.
+
+## Contribution
+
+Please make sure to read the [Contributing Guide](https://github.com/vuejs/vue/blob/dev/.github/CONTRIBUTING.md) before making a pull request.
+
+## Changelog
+
+Details changes for each release are documented in the [release notes](https://github.com/vuejs/vue-router/releases).
+
+## Stay In Touch
+
+- For latest releases and announcements, follow on Twitter: [@vuejs](https://twitter.com/vuejs)
+
+## License
+
+[MIT](http://opensource.org/licenses/MIT)
+
+Copyright (c) 2013-present Evan You
+
+
diff --git a/node_modules/vue-router/dist/vue-router.common.js b/node_modules/vue-router/dist/vue-router.common.js
new file mode 100644
index 0000000..5274e9a
--- /dev/null
+++ b/node_modules/vue-router/dist/vue-router.common.js
@@ -0,0 +1,2620 @@
+/*!
+  * vue-router v3.0.2
+  * (c) 2018 Evan You
+  * @license MIT
+  */
+'use strict';
+
+/*  */
+
+function assert (condition, message) {
+  if (!condition) {
+    throw new Error(("[vue-router] " + message))
+  }
+}
+
+function warn (condition, message) {
+  if (process.env.NODE_ENV !== 'production' && !condition) {
+    typeof console !== 'undefined' && console.warn(("[vue-router] " + message));
+  }
+}
+
+function isError (err) {
+  return Object.prototype.toString.call(err).indexOf('Error') > -1
+}
+
+function extend (a, b) {
+  for (var key in b) {
+    a[key] = b[key];
+  }
+  return a
+}
+
+var View = {
+  name: 'RouterView',
+  functional: true,
+  props: {
+    name: {
+      type: String,
+      default: 'default'
+    }
+  },
+  render: function render (_, ref) {
+    var props = ref.props;
+    var children = ref.children;
+    var parent = ref.parent;
+    var data = ref.data;
+
+    // used by devtools to display a router-view badge
+    data.routerView = true;
+
+    // directly use parent context's createElement() function
+    // so that components rendered by router-view can resolve named slots
+    var h = parent.$createElement;
+    var name = props.name;
+    var route = parent.$route;
+    var cache = parent._routerViewCache || (parent._routerViewCache = {});
+
+    // determine current view depth, also check to see if the tree
+    // has been toggled inactive but kept-alive.
+    var depth = 0;
+    var inactive = false;
+    while (parent && parent._routerRoot !== parent) {
+      if (parent.$vnode && parent.$vnode.data.routerView) {
+        depth++;
+      }
+      if (parent._inactive) {
+        inactive = true;
+      }
+      parent = parent.$parent;
+    }
+    data.routerViewDepth = depth;
+
+    // render previous view if the tree is inactive and kept-alive
+    if (inactive) {
+      return h(cache[name], data, children)
+    }
+
+    var matched = route.matched[depth];
+    // render empty node if no matched route
+    if (!matched) {
+      cache[name] = null;
+      return h()
+    }
+
+    var component = cache[name] = matched.components[name];
+
+    // attach instance registration hook
+    // this will be called in the instance's injected lifecycle hooks
+    data.registerRouteInstance = function (vm, val) {
+      // val could be undefined for unregistration
+      var current = matched.instances[name];
+      if (
+        (val && current !== vm) ||
+        (!val && current === vm)
+      ) {
+        matched.instances[name] = val;
+      }
+    }
+
+    // also register instance in prepatch hook
+    // in case the same component instance is reused across different routes
+    ;(data.hook || (data.hook = {})).prepatch = function (_, vnode) {
+      matched.instances[name] = vnode.componentInstance;
+    };
+
+    // resolve props
+    var propsToPass = data.props = resolveProps(route, matched.props && matched.props[name]);
+    if (propsToPass) {
+      // clone to prevent mutation
+      propsToPass = data.props = extend({}, propsToPass);
+      // pass non-declared props as attrs
+      var attrs = data.attrs = data.attrs || {};
+      for (var key in propsToPass) {
+        if (!component.props || !(key in component.props)) {
+          attrs[key] = propsToPass[key];
+          delete propsToPass[key];
+        }
+      }
+    }
+
+    return h(component, data, children)
+  }
+}
+
+function resolveProps (route, config) {
+  switch (typeof config) {
+    case 'undefined':
+      return
+    case 'object':
+      return config
+    case 'function':
+      return config(route)
+    case 'boolean':
+      return config ? route.params : undefined
+    default:
+      if (process.env.NODE_ENV !== 'production') {
+        warn(
+          false,
+          "props in \"" + (route.path) + "\" is a " + (typeof config) + ", " +
+          "expecting an object, function or boolean."
+        );
+      }
+  }
+}
+
+/*  */
+
+var encodeReserveRE = /[!'()*]/g;
+var encodeReserveReplacer = function (c) { return '%' + c.charCodeAt(0).toString(16); };
+var commaRE = /%2C/g;
+
+// fixed encodeURIComponent which is more conformant to RFC3986:
+// - escapes [!'()*]
+// - preserve commas
+var encode = function (str) { return encodeURIComponent(str)
+  .replace(encodeReserveRE, encodeReserveReplacer)
+  .replace(commaRE, ','); };
+
+var decode = decodeURIComponent;
+
+function resolveQuery (
+  query,
+  extraQuery,
+  _parseQuery
+) {
+  if ( extraQuery === void 0 ) extraQuery = {};
+
+  var parse = _parseQuery || parseQuery;
+  var parsedQuery;
+  try {
+    parsedQuery = parse(query || '');
+  } catch (e) {
+    process.env.NODE_ENV !== 'production' && warn(false, e.message);
+    parsedQuery = {};
+  }
+  for (var key in extraQuery) {
+    parsedQuery[key] = extraQuery[key];
+  }
+  return parsedQuery
+}
+
+function parseQuery (query) {
+  var res = {};
+
+  query = query.trim().replace(/^(\?|#|&)/, '');
+
+  if (!query) {
+    return res
+  }
+
+  query.split('&').forEach(function (param) {
+    var parts = param.replace(/\+/g, ' ').split('=');
+    var key = decode(parts.shift());
+    var val = parts.length > 0
+      ? decode(parts.join('='))
+      : null;
+
+    if (res[key] === undefined) {
+      res[key] = val;
+    } else if (Array.isArray(res[key])) {
+      res[key].push(val);
+    } else {
+      res[key] = [res[key], val];
+    }
+  });
+
+  return res
+}
+
+function stringifyQuery (obj) {
+  var res = obj ? Object.keys(obj).map(function (key) {
+    var val = obj[key];
+
+    if (val === undefined) {
+      return ''
+    }
+
+    if (val === null) {
+      return encode(key)
+    }
+
+    if (Array.isArray(val)) {
+      var result = [];
+      val.forEach(function (val2) {
+        if (val2 === undefined) {
+          return
+        }
+        if (val2 === null) {
+          result.push(encode(key));
+        } else {
+          result.push(encode(key) + '=' + encode(val2));
+        }
+      });
+      return result.join('&')
+    }
+
+    return encode(key) + '=' + encode(val)
+  }).filter(function (x) { return x.length > 0; }).join('&') : null;
+  return res ? ("?" + res) : ''
+}
+
+/*  */
+
+var trailingSlashRE = /\/?$/;
+
+function createRoute (
+  record,
+  location,
+  redirectedFrom,
+  router
+) {
+  var stringifyQuery$$1 = router && router.options.stringifyQuery;
+
+  var query = location.query || {};
+  try {
+    query = clone(query);
+  } catch (e) {}
+
+  var route = {
+    name: location.name || (record && record.name),
+    meta: (record && record.meta) || {},
+    path: location.path || '/',
+    hash: location.hash || '',
+    query: query,
+    params: location.params || {},
+    fullPath: getFullPath(location, stringifyQuery$$1),
+    matched: record ? formatMatch(record) : []
+  };
+  if (redirectedFrom) {
+    route.redirectedFrom = getFullPath(redirectedFrom, stringifyQuery$$1);
+  }
+  return Object.freeze(route)
+}
+
+function clone (value) {
+  if (Array.isArray(value)) {
+    return value.map(clone)
+  } else if (value && typeof value === 'object') {
+    var res = {};
+    for (var key in value) {
+      res[key] = clone(value[key]);
+    }
+    return res
+  } else {
+    return value
+  }
+}
+
+// the starting route that represents the initial state
+var START = createRoute(null, {
+  path: '/'
+});
+
+function formatMatch (record) {
+  var res = [];
+  while (record) {
+    res.unshift(record);
+    record = record.parent;
+  }
+  return res
+}
+
+function getFullPath (
+  ref,
+  _stringifyQuery
+) {
+  var path = ref.path;
+  var query = ref.query; if ( query === void 0 ) query = {};
+  var hash = ref.hash; if ( hash === void 0 ) hash = '';
+
+  var stringify = _stringifyQuery || stringifyQuery;
+  return (path || '/') + stringify(query) + hash
+}
+
+function isSameRoute (a, b) {
+  if (b === START) {
+    return a === b
+  } else if (!b) {
+    return false
+  } else if (a.path && b.path) {
+    return (
+      a.path.replace(trailingSlashRE, '') === b.path.replace(trailingSlashRE, '') &&
+      a.hash === b.hash &&
+      isObjectEqual(a.query, b.query)
+    )
+  } else if (a.name && b.name) {
+    return (
+      a.name === b.name &&
+      a.hash === b.hash &&
+      isObjectEqual(a.query, b.query) &&
+      isObjectEqual(a.params, b.params)
+    )
+  } else {
+    return false
+  }
+}
+
+function isObjectEqual (a, b) {
+  if ( a === void 0 ) a = {};
+  if ( b === void 0 ) b = {};
+
+  // handle null value #1566
+  if (!a || !b) { return a === b }
+  var aKeys = Object.keys(a);
+  var bKeys = Object.keys(b);
+  if (aKeys.length !== bKeys.length) {
+    return false
+  }
+  return aKeys.every(function (key) {
+    var aVal = a[key];
+    var bVal = b[key];
+    // check nested equality
+    if (typeof aVal === 'object' && typeof bVal === 'object') {
+      return isObjectEqual(aVal, bVal)
+    }
+    return String(aVal) === String(bVal)
+  })
+}
+
+function isIncludedRoute (current, target) {
+  return (
+    current.path.replace(trailingSlashRE, '/').indexOf(
+      target.path.replace(trailingSlashRE, '/')
+    ) === 0 &&
+    (!target.hash || current.hash === target.hash) &&
+    queryIncludes(current.query, target.query)
+  )
+}
+
+function queryIncludes (current, target) {
+  for (var key in target) {
+    if (!(key in current)) {
+      return false
+    }
+  }
+  return true
+}
+
+/*  */
+
+// work around weird flow bug
+var toTypes = [String, Object];
+var eventTypes = [String, Array];
+
+var Link = {
+  name: 'RouterLink',
+  props: {
+    to: {
+      type: toTypes,
+      required: true
+    },
+    tag: {
+      type: String,
+      default: 'a'
+    },
+    exact: Boolean,
+    append: Boolean,
+    replace: Boolean,
+    activeClass: String,
+    exactActiveClass: String,
+    event: {
+      type: eventTypes,
+      default: 'click'
+    }
+  },
+  render: function render (h) {
+    var this$1 = this;
+
+    var router = this.$router;
+    var current = this.$route;
+    var ref = router.resolve(this.to, current, this.append);
+    var location = ref.location;
+    var route = ref.route;
+    var href = ref.href;
+
+    var classes = {};
+    var globalActiveClass = router.options.linkActiveClass;
+    var globalExactActiveClass = router.options.linkExactActiveClass;
+    // Support global empty active class
+    var activeClassFallback = globalActiveClass == null
+      ? 'router-link-active'
+      : globalActiveClass;
+    var exactActiveClassFallback = globalExactActiveClass == null
+      ? 'router-link-exact-active'
+      : globalExactActiveClass;
+    var activeClass = this.activeClass == null
+      ? activeClassFallback
+      : this.activeClass;
+    var exactActiveClass = this.exactActiveClass == null
+      ? exactActiveClassFallback
+      : this.exactActiveClass;
+    var compareTarget = location.path
+      ? createRoute(null, location, null, router)
+      : route;
+
+    classes[exactActiveClass] = isSameRoute(current, compareTarget);
+    classes[activeClass] = this.exact
+      ? classes[exactActiveClass]
+      : isIncludedRoute(current, compareTarget);
+
+    var handler = function (e) {
+      if (guardEvent(e)) {
+        if (this$1.replace) {
+          router.replace(location);
+        } else {
+          router.push(location);
+        }
+      }
+    };
+
+    var on = { click: guardEvent };
+    if (Array.isArray(this.event)) {
+      this.event.forEach(function (e) { on[e] = handler; });
+    } else {
+      on[this.event] = handler;
+    }
+
+    var data = {
+      class: classes
+    };
+
+    if (this.tag === 'a') {
+      data.on = on;
+      data.attrs = { href: href };
+    } else {
+      // find the first <a> child and apply listener and href
+      var a = findAnchor(this.$slots.default);
+      if (a) {
+        // in case the <a> is a static node
+        a.isStatic = false;
+        var aData = a.data = extend({}, a.data);
+        aData.on = on;
+        var aAttrs = a.data.attrs = extend({}, a.data.attrs);
+        aAttrs.href = href;
+      } else {
+        // doesn't have <a> child, apply listener to self
+        data.on = on;
+      }
+    }
+
+    return h(this.tag, data, this.$slots.default)
+  }
+}
+
+function guardEvent (e) {
+  // don't redirect with control keys
+  if (e.metaKey || e.altKey || e.ctrlKey || e.shiftKey) { return }
+  // don't redirect when preventDefault called
+  if (e.defaultPrevented) { return }
+  // don't redirect on right click
+  if (e.button !== undefined && e.button !== 0) { return }
+  // don't redirect if `target="_blank"`
+  if (e.currentTarget && e.currentTarget.getAttribute) {
+    var target = e.currentTarget.getAttribute('target');
+    if (/\b_blank\b/i.test(target)) { return }
+  }
+  // this may be a Weex event which doesn't have this method
+  if (e.preventDefault) {
+    e.preventDefault();
+  }
+  return true
+}
+
+function findAnchor (children) {
+  if (children) {
+    var child;
+    for (var i = 0; i < children.length; i++) {
+      child = children[i];
+      if (child.tag === 'a') {
+        return child
+      }
+      if (child.children && (child = findAnchor(child.children))) {
+        return child
+      }
+    }
+  }
+}
+
+var _Vue;
+
+function install (Vue) {
+  if (install.installed && _Vue === Vue) { return }
+  install.installed = true;
+
+  _Vue = Vue;
+
+  var isDef = function (v) { return v !== undefined; };
+
+  var registerInstance = function (vm, callVal) {
+    var i = vm.$options._parentVnode;
+    if (isDef(i) && isDef(i = i.data) && isDef(i = i.registerRouteInstance)) {
+      i(vm, callVal);
+    }
+  };
+
+  Vue.mixin({
+    beforeCreate: function beforeCreate () {
+      if (isDef(this.$options.router)) {
+        this._routerRoot = this;
+        this._router = this.$options.router;
+        this._router.init(this);
+        Vue.util.defineReactive(this, '_route', this._router.history.current);
+      } else {
+        this._routerRoot = (this.$parent && this.$parent._routerRoot) || this;
+      }
+      registerInstance(this, this);
+    },
+    destroyed: function destroyed () {
+      registerInstance(this);
+    }
+  });
+
+  Object.defineProperty(Vue.prototype, '$router', {
+    get: function get () { return this._routerRoot._router }
+  });
+
+  Object.defineProperty(Vue.prototype, '$route', {
+    get: function get () { return this._routerRoot._route }
+  });
+
+  Vue.component('RouterView', View);
+  Vue.component('RouterLink', Link);
+
+  var strats = Vue.config.optionMergeStrategies;
+  // use the same hook merging strategy for route hooks
+  strats.beforeRouteEnter = strats.beforeRouteLeave = strats.beforeRouteUpdate = strats.created;
+}
+
+/*  */
+
+var inBrowser = typeof window !== 'undefined';
+
+/*  */
+
+function resolvePath (
+  relative,
+  base,
+  append
+) {
+  var firstChar = relative.charAt(0);
+  if (firstChar === '/') {
+    return relative
+  }
+
+  if (firstChar === '?' || firstChar === '#') {
+    return base + relative
+  }
+
+  var stack = base.split('/');
+
+  // remove trailing segment if:
+  // - not appending
+  // - appending to trailing slash (last segment is empty)
+  if (!append || !stack[stack.length - 1]) {
+    stack.pop();
+  }
+
+  // resolve relative path
+  var segments = relative.replace(/^\//, '').split('/');
+  for (var i = 0; i < segments.length; i++) {
+    var segment = segments[i];
+    if (segment === '..') {
+      stack.pop();
+    } else if (segment !== '.') {
+      stack.push(segment);
+    }
+  }
+
+  // ensure leading slash
+  if (stack[0] !== '') {
+    stack.unshift('');
+  }
+
+  return stack.join('/')
+}
+
+function parsePath (path) {
+  var hash = '';
+  var query = '';
+
+  var hashIndex = path.indexOf('#');
+  if (hashIndex >= 0) {
+    hash = path.slice(hashIndex);
+    path = path.slice(0, hashIndex);
+  }
+
+  var queryIndex = path.indexOf('?');
+  if (queryIndex >= 0) {
+    query = path.slice(queryIndex + 1);
+    path = path.slice(0, queryIndex);
+  }
+
+  return {
+    path: path,
+    query: query,
+    hash: hash
+  }
+}
+
+function cleanPath (path) {
+  return path.replace(/\/\//g, '/')
+}
+
+var isarray = Array.isArray || function (arr) {
+  return Object.prototype.toString.call(arr) == '[object Array]';
+};
+
+/**
+ * Expose `pathToRegexp`.
+ */
+var pathToRegexp_1 = pathToRegexp;
+var parse_1 = parse;
+var compile_1 = compile;
+var tokensToFunction_1 = tokensToFunction;
+var tokensToRegExp_1 = tokensToRegExp;
+
+/**
+ * The main path matching regexp utility.
+ *
+ * @type {RegExp}
+ */
+var PATH_REGEXP = new RegExp([
+  // Match escaped characters that would otherwise appear in future matches.
+  // This allows the user to escape special characters that won't transform.
+  '(\\\\.)',
+  // Match Express-style parameters and un-named parameters with a prefix
+  // and optional suffixes. Matches appear as:
+  //
+  // "/:test(\\d+)?" => ["/", "test", "\d+", undefined, "?", undefined]
+  // "/route(\\d+)"  => [undefined, undefined, undefined, "\d+", undefined, undefined]
+  // "/*"            => ["/", undefined, undefined, undefined, undefined, "*"]
+  '([\\/.])?(?:(?:\\:(\\w+)(?:\\(((?:\\\\.|[^\\\\()])+)\\))?|\\(((?:\\\\.|[^\\\\()])+)\\))([+*?])?|(\\*))'
+].join('|'), 'g');
+
+/**
+ * Parse a string for the raw tokens.
+ *
+ * @param  {string}  str
+ * @param  {Object=} options
+ * @return {!Array}
+ */
+function parse (str, options) {
+  var tokens = [];
+  var key = 0;
+  var index = 0;
+  var path = '';
+  var defaultDelimiter = options && options.delimiter || '/';
+  var res;
+
+  while ((res = PATH_REGEXP.exec(str)) != null) {
+    var m = res[0];
+    var escaped = res[1];
+    var offset = res.index;
+    path += str.slice(index, offset);
+    index = offset + m.length;
+
+    // Ignore already escaped sequences.
+    if (escaped) {
+      path += escaped[1];
+      continue
+    }
+
+    var next = str[index];
+    var prefix = res[2];
+    var name = res[3];
+    var capture = res[4];
+    var group = res[5];
+    var modifier = res[6];
+    var asterisk = res[7];
+
+    // Push the current path onto the tokens.
+    if (path) {
+      tokens.push(path);
+      path = '';
+    }
+
+    var partial = prefix != null && next != null && next !== prefix;
+    var repeat = modifier === '+' || modifier === '*';
+    var optional = modifier === '?' || modifier === '*';
+    var delimiter = res[2] || defaultDelimiter;
+    var pattern = capture || group;
+
+    tokens.push({
+      name: name || key++,
+      prefix: prefix || '',
+      delimiter: delimiter,
+      optional: optional,
+      repeat: repeat,
+      partial: partial,
+      asterisk: !!asterisk,
+      pattern: pattern ? escapeGroup(pattern) : (asterisk ? '.*' : '[^' + escapeString(delimiter) + ']+?')
+    });
+  }
+
+  // Match any characters still remaining.
+  if (index < str.length) {
+    path += str.substr(index);
+  }
+
+  // If the path exists, push it onto the end.
+  if (path) {
+    tokens.push(path);
+  }
+
+  return tokens
+}
+
+/**
+ * Compile a string to a template function for the path.
+ *
+ * @param  {string}             str
+ * @param  {Object=}            options
+ * @return {!function(Object=, Object=)}
+ */
+function compile (str, options) {
+  return tokensToFunction(parse(str, options))
+}
+
+/**
+ * Prettier encoding of URI path segments.
+ *
+ * @param  {string}
+ * @return {string}
+ */
+function encodeURIComponentPretty (str) {
+  return encodeURI(str).replace(/[\/?#]/g, function (c) {
+    return '%' + c.charCodeAt(0).toString(16).toUpperCase()
+  })
+}
+
+/**
+ * Encode the asterisk parameter. Similar to `pretty`, but allows slashes.
+ *
+ * @param  {string}
+ * @return {string}
+ */
+function encodeAsterisk (str) {
+  return encodeURI(str).replace(/[?#]/g, function (c) {
+    return '%' + c.charCodeAt(0).toString(16).toUpperCase()
+  })
+}
+
+/**
+ * Expose a method for transforming tokens into the path function.
+ */
+function tokensToFunction (tokens) {
+  // Compile all the tokens into regexps.
+  var matches = new Array(tokens.length);
+
+  // Compile all the patterns before compilation.
+  for (var i = 0; i < tokens.length; i++) {
+    if (typeof tokens[i] === 'object') {
+      matches[i] = new RegExp('^(?:' + tokens[i].pattern + ')$');
+    }
+  }
+
+  return function (obj, opts) {
+    var path = '';
+    var data = obj || {};
+    var options = opts || {};
+    var encode = options.pretty ? encodeURIComponentPretty : encodeURIComponent;
+
+    for (var i = 0; i < tokens.length; i++) {
+      var token = tokens[i];
+
+      if (typeof token === 'string') {
+        path += token;
+
+        continue
+      }
+
+      var value = data[token.name];
+      var segment;
+
+      if (value == null) {
+        if (token.optional) {
+          // Prepend partial segment prefixes.
+          if (token.partial) {
+            path += token.prefix;
+          }
+
+          continue
+        } else {
+          throw new TypeError('Expected "' + token.name + '" to be defined')
+        }
+      }
+
+      if (isarray(value)) {
+        if (!token.repeat) {
+          throw new TypeError('Expected "' + token.name + '" to not repeat, but received `' + JSON.stringify(value) + '`')
+        }
+
+        if (value.length === 0) {
+          if (token.optional) {
+            continue
+          } else {
+            throw new TypeError('Expected "' + token.name + '" to not be empty')
+          }
+        }
+
+        for (var j = 0; j < value.length; j++) {
+          segment = encode(value[j]);
+
+          if (!matches[i].test(segment)) {
+            throw new TypeError('Expected all "' + token.name + '" to match "' + token.pattern + '", but received `' + JSON.stringify(segment) + '`')
+          }
+
+          path += (j === 0 ? token.prefix : token.delimiter) + segment;
+        }
+
+        continue
+      }
+
+      segment = token.asterisk ? encodeAsterisk(value) : encode(value);
+
+      if (!matches[i].test(segment)) {
+        throw new TypeError('Expected "' + token.name + '" to match "' + token.pattern + '", but received "' + segment + '"')
+      }
+
+      path += token.prefix + segment;
+    }
+
+    return path
+  }
+}
+
+/**
+ * Escape a regular expression string.
+ *
+ * @param  {string} str
+ * @return {string}
+ */
+function escapeString (str) {
+  return str.replace(/([.+*?=^!:${}()[\]|\/\\])/g, '\\$1')
+}
+
+/**
+ * Escape the capturing group by escaping special characters and meaning.
+ *
+ * @param  {string} group
+ * @return {string}
+ */
+function escapeGroup (group) {
+  return group.replace(/([=!:$\/()])/g, '\\$1')
+}
+
+/**
+ * Attach the keys as a property of the regexp.
+ *
+ * @param  {!RegExp} re
+ * @param  {Array}   keys
+ * @return {!RegExp}
+ */
+function attachKeys (re, keys) {
+  re.keys = keys;
+  return re
+}
+
+/**
+ * Get the flags for a regexp from the options.
+ *
+ * @param  {Object} options
+ * @return {string}
+ */
+function flags (options) {
+  return options.sensitive ? '' : 'i'
+}
+
+/**
+ * Pull out keys from a regexp.
+ *
+ * @param  {!RegExp} path
+ * @param  {!Array}  keys
+ * @return {!RegExp}
+ */
+function regexpToRegexp (path, keys) {
+  // Use a negative lookahead to match only capturing groups.
+  var groups = path.source.match(/\((?!\?)/g);
+
+  if (groups) {
+    for (var i = 0; i < groups.length; i++) {
+      keys.push({
+        name: i,
+        prefix: null,
+        delimiter: null,
+        optional: false,
+        repeat: false,
+        partial: false,
+        asterisk: false,
+        pattern: null
+      });
+    }
+  }
+
+  return attachKeys(path, keys)
+}
+
+/**
+ * Transform an array into a regexp.
+ *
+ * @param  {!Array}  path
+ * @param  {Array}   keys
+ * @param  {!Object} options
+ * @return {!RegExp}
+ */
+function arrayToRegexp (path, keys, options) {
+  var parts = [];
+
+  for (var i = 0; i < path.length; i++) {
+    parts.push(pathToRegexp(path[i], keys, options).source);
+  }
+
+  var regexp = new RegExp('(?:' + parts.join('|') + ')', flags(options));
+
+  return attachKeys(regexp, keys)
+}
+
+/**
+ * Create a path regexp from string input.
+ *
+ * @param  {string}  path
+ * @param  {!Array}  keys
+ * @param  {!Object} options
+ * @return {!RegExp}
+ */
+function stringToRegexp (path, keys, options) {
+  return tokensToRegExp(parse(path, options), keys, options)
+}
+
+/**
+ * Expose a function for taking tokens and returning a RegExp.
+ *
+ * @param  {!Array}          tokens
+ * @param  {(Array|Object)=} keys
+ * @param  {Object=}         options
+ * @return {!RegExp}
+ */
+function tokensToRegExp (tokens, keys, options) {
+  if (!isarray(keys)) {
+    options = /** @type {!Object} */ (keys || options);
+    keys = [];
+  }
+
+  options = options || {};
+
+  var strict = options.strict;
+  var end = options.end !== false;
+  var route = '';
+
+  // Iterate over the tokens and create our regexp string.
+  for (var i = 0; i < tokens.length; i++) {
+    var token = tokens[i];
+
+    if (typeof token === 'string') {
+      route += escapeString(token);
+    } else {
+      var prefix = escapeString(token.prefix);
+      var capture = '(?:' + token.pattern + ')';
+
+      keys.push(token);
+
+      if (token.repeat) {
+        capture += '(?:' + prefix + capture + ')*';
+      }
+
+      if (token.optional) {
+        if (!token.partial) {
+          capture = '(?:' + prefix + '(' + capture + '))?';
+        } else {
+          capture = prefix + '(' + capture + ')?';
+        }
+      } else {
+        capture = prefix + '(' + capture + ')';
+      }
+
+      route += capture;
+    }
+  }
+
+  var delimiter = escapeString(options.delimiter || '/');
+  var endsWithDelimiter = route.slice(-delimiter.length) === delimiter;
+
+  // In non-strict mode we allow a slash at the end of match. If the path to
+  // match already ends with a slash, we remove it for consistency. The slash
+  // is valid at the end of a path match, not in the middle. This is important
+  // in non-ending mode, where "/test/" shouldn't match "/test//route".
+  if (!strict) {
+    route = (endsWithDelimiter ? route.slice(0, -delimiter.length) : route) + '(?:' + delimiter + '(?=$))?';
+  }
+
+  if (end) {
+    route += '$';
+  } else {
+    // In non-ending mode, we need the capturing groups to match as much as
+    // possible by using a positive lookahead to the end or next path segment.
+    route += strict && endsWithDelimiter ? '' : '(?=' + delimiter + '|$)';
+  }
+
+  return attachKeys(new RegExp('^' + route, flags(options)), keys)
+}
+
+/**
+ * Normalize the given path string, returning a regular expression.
+ *
+ * An empty array can be passed in for the keys, which will hold the
+ * placeholder key descriptions. For example, using `/user/:id`, `keys` will
+ * contain `[{ name: 'id', delimiter: '/', optional: false, repeat: false }]`.
+ *
+ * @param  {(string|RegExp|Array)} path
+ * @param  {(Array|Object)=}       keys
+ * @param  {Object=}               options
+ * @return {!RegExp}
+ */
+function pathToRegexp (path, keys, options) {
+  if (!isarray(keys)) {
+    options = /** @type {!Object} */ (keys || options);
+    keys = [];
+  }
+
+  options = options || {};
+
+  if (path instanceof RegExp) {
+    return regexpToRegexp(path, /** @type {!Array} */ (keys))
+  }
+
+  if (isarray(path)) {
+    return arrayToRegexp(/** @type {!Array} */ (path), /** @type {!Array} */ (keys), options)
+  }
+
+  return stringToRegexp(/** @type {string} */ (path), /** @type {!Array} */ (keys), options)
+}
+pathToRegexp_1.parse = parse_1;
+pathToRegexp_1.compile = compile_1;
+pathToRegexp_1.tokensToFunction = tokensToFunction_1;
+pathToRegexp_1.tokensToRegExp = tokensToRegExp_1;
+
+/*  */
+
+// $flow-disable-line
+var regexpCompileCache = Object.create(null);
+
+function fillParams (
+  path,
+  params,
+  routeMsg
+) {
+  try {
+    var filler =
+      regexpCompileCache[path] ||
+      (regexpCompileCache[path] = pathToRegexp_1.compile(path));
+    return filler(params || {}, { pretty: true })
+  } catch (e) {
+    if (process.env.NODE_ENV !== 'production') {
+      warn(false, ("missing param for " + routeMsg + ": " + (e.message)));
+    }
+    return ''
+  }
+}
+
+/*  */
+
+function createRouteMap (
+  routes,
+  oldPathList,
+  oldPathMap,
+  oldNameMap
+) {
+  // the path list is used to control path matching priority
+  var pathList = oldPathList || [];
+  // $flow-disable-line
+  var pathMap = oldPathMap || Object.create(null);
+  // $flow-disable-line
+  var nameMap = oldNameMap || Object.create(null);
+
+  routes.forEach(function (route) {
+    addRouteRecord(pathList, pathMap, nameMap, route);
+  });
+
+  // ensure wildcard routes are always at the end
+  for (var i = 0, l = pathList.length; i < l; i++) {
+    if (pathList[i] === '*') {
+      pathList.push(pathList.splice(i, 1)[0]);
+      l--;
+      i--;
+    }
+  }
+
+  return {
+    pathList: pathList,
+    pathMap: pathMap,
+    nameMap: nameMap
+  }
+}
+
+function addRouteRecord (
+  pathList,
+  pathMap,
+  nameMap,
+  route,
+  parent,
+  matchAs
+) {
+  var path = route.path;
+  var name = route.name;
+  if (process.env.NODE_ENV !== 'production') {
+    assert(path != null, "\"path\" is required in a route configuration.");
+    assert(
+      typeof route.component !== 'string',
+      "route config \"component\" for path: " + (String(path || name)) + " cannot be a " +
+      "string id. Use an actual component instead."
+    );
+  }
+
+  var pathToRegexpOptions = route.pathToRegexpOptions || {};
+  var normalizedPath = normalizePath(
+    path,
+    parent,
+    pathToRegexpOptions.strict
+  );
+
+  if (typeof route.caseSensitive === 'boolean') {
+    pathToRegexpOptions.sensitive = route.caseSensitive;
+  }
+
+  var record = {
+    path: normalizedPath,
+    regex: compileRouteRegex(normalizedPath, pathToRegexpOptions),
+    components: route.components || { default: route.component },
+    instances: {},
+    name: name,
+    parent: parent,
+    matchAs: matchAs,
+    redirect: route.redirect,
+    beforeEnter: route.beforeEnter,
+    meta: route.meta || {},
+    props: route.props == null
+      ? {}
+      : route.components
+        ? route.props
+        : { default: route.props }
+  };
+
+  if (route.children) {
+    // Warn if route is named, does not redirect and has a default child route.
+    // If users navigate to this route by name, the default child will
+    // not be rendered (GH Issue #629)
+    if (process.env.NODE_ENV !== 'production') {
+      if (route.name && !route.redirect && route.children.some(function (child) { return /^\/?$/.test(child.path); })) {
+        warn(
+          false,
+          "Named Route '" + (route.name) + "' has a default child route. " +
+          "When navigating to this named route (:to=\"{name: '" + (route.name) + "'\"), " +
+          "the default child route will not be rendered. Remove the name from " +
+          "this route and use the name of the default child route for named " +
+          "links instead."
+        );
+      }
+    }
+    route.children.forEach(function (child) {
+      var childMatchAs = matchAs
+        ? cleanPath((matchAs + "/" + (child.path)))
+        : undefined;
+      addRouteRecord(pathList, pathMap, nameMap, child, record, childMatchAs);
+    });
+  }
+
+  if (route.alias !== undefined) {
+    var aliases = Array.isArray(route.alias)
+      ? route.alias
+      : [route.alias];
+
+    aliases.forEach(function (alias) {
+      var aliasRoute = {
+        path: alias,
+        children: route.children
+      };
+      addRouteRecord(
+        pathList,
+        pathMap,
+        nameMap,
+        aliasRoute,
+        parent,
+        record.path || '/' // matchAs
+      );
+    });
+  }
+
+  if (!pathMap[record.path]) {
+    pathList.push(record.path);
+    pathMap[record.path] = record;
+  }
+
+  if (name) {
+    if (!nameMap[name]) {
+      nameMap[name] = record;
+    } else if (process.env.NODE_ENV !== 'production' && !matchAs) {
+      warn(
+        false,
+        "Duplicate named routes definition: " +
+        "{ name: \"" + name + "\", path: \"" + (record.path) + "\" }"
+      );
+    }
+  }
+}
+
+function compileRouteRegex (path, pathToRegexpOptions) {
+  var regex = pathToRegexp_1(path, [], pathToRegexpOptions);
+  if (process.env.NODE_ENV !== 'production') {
+    var keys = Object.create(null);
+    regex.keys.forEach(function (key) {
+      warn(!keys[key.name], ("Duplicate param keys in route with path: \"" + path + "\""));
+      keys[key.name] = true;
+    });
+  }
+  return regex
+}
+
+function normalizePath (path, parent, strict) {
+  if (!strict) { path = path.replace(/\/$/, ''); }
+  if (path[0] === '/') { return path }
+  if (parent == null) { return path }
+  return cleanPath(((parent.path) + "/" + path))
+}
+
+/*  */
+
+function normalizeLocation (
+  raw,
+  current,
+  append,
+  router
+) {
+  var next = typeof raw === 'string' ? { path: raw } : raw;
+  // named target
+  if (next.name || next._normalized) {
+    return next
+  }
+
+  // relative params
+  if (!next.path && next.params && current) {
+    next = extend({}, next);
+    next._normalized = true;
+    var params = extend(extend({}, current.params), next.params);
+    if (current.name) {
+      next.name = current.name;
+      next.params = params;
+    } else if (current.matched.length) {
+      var rawPath = current.matched[current.matched.length - 1].path;
+      next.path = fillParams(rawPath, params, ("path " + (current.path)));
+    } else if (process.env.NODE_ENV !== 'production') {
+      warn(false, "relative params navigation requires a current route.");
+    }
+    return next
+  }
+
+  var parsedPath = parsePath(next.path || '');
+  var basePath = (current && current.path) || '/';
+  var path = parsedPath.path
+    ? resolvePath(parsedPath.path, basePath, append || next.append)
+    : basePath;
+
+  var query = resolveQuery(
+    parsedPath.query,
+    next.query,
+    router && router.options.parseQuery
+  );
+
+  var hash = next.hash || parsedPath.hash;
+  if (hash && hash.charAt(0) !== '#') {
+    hash = "#" + hash;
+  }
+
+  return {
+    _normalized: true,
+    path: path,
+    query: query,
+    hash: hash
+  }
+}
+
+/*  */
+
+
+
+function createMatcher (
+  routes,
+  router
+) {
+  var ref = createRouteMap(routes);
+  var pathList = ref.pathList;
+  var pathMap = ref.pathMap;
+  var nameMap = ref.nameMap;
+
+  function addRoutes (routes) {
+    createRouteMap(routes, pathList, pathMap, nameMap);
+  }
+
+  function match (
+    raw,
+    currentRoute,
+    redirectedFrom
+  ) {
+    var location = normalizeLocation(raw, currentRoute, false, router);
+    var name = location.name;
+
+    if (name) {
+      var record = nameMap[name];
+      if (process.env.NODE_ENV !== 'production') {
+        warn(record, ("Route with name '" + name + "' does not exist"));
+      }
+      if (!record) { return _createRoute(null, location) }
+      var paramNames = record.regex.keys
+        .filter(function (key) { return !key.optional; })
+        .map(function (key) { return key.name; });
+
+      if (typeof location.params !== 'object') {
+        location.params = {};
+      }
+
+      if (currentRoute && typeof currentRoute.params === 'object') {
+        for (var key in currentRoute.params) {
+          if (!(key in location.params) && paramNames.indexOf(key) > -1) {
+            location.params[key] = currentRoute.params[key];
+          }
+        }
+      }
+
+      if (record) {
+        location.path = fillParams(record.path, location.params, ("named route \"" + name + "\""));
+        return _createRoute(record, location, redirectedFrom)
+      }
+    } else if (location.path) {
+      location.params = {};
+      for (var i = 0; i < pathList.length; i++) {
+        var path = pathList[i];
+        var record$1 = pathMap[path];
+        if (matchRoute(record$1.regex, location.path, location.params)) {
+          return _createRoute(record$1, location, redirectedFrom)
+        }
+      }
+    }
+    // no match
+    return _createRoute(null, location)
+  }
+
+  function redirect (
+    record,
+    location
+  ) {
+    var originalRedirect = record.redirect;
+    var redirect = typeof originalRedirect === 'function'
+      ? originalRedirect(createRoute(record, location, null, router))
+      : originalRedirect;
+
+    if (typeof redirect === 'string') {
+      redirect = { path: redirect };
+    }
+
+    if (!redirect || typeof redirect !== 'object') {
+      if (process.env.NODE_ENV !== 'production') {
+        warn(
+          false, ("invalid redirect option: " + (JSON.stringify(redirect)))
+        );
+      }
+      return _createRoute(null, location)
+    }
+
+    var re = redirect;
+    var name = re.name;
+    var path = re.path;
+    var query = location.query;
+    var hash = location.hash;
+    var params = location.params;
+    query = re.hasOwnProperty('query') ? re.query : query;
+    hash = re.hasOwnProperty('hash') ? re.hash : hash;
+    params = re.hasOwnProperty('params') ? re.params : params;
+
+    if (name) {
+      // resolved named direct
+      var targetRecord = nameMap[name];
+      if (process.env.NODE_ENV !== 'production') {
+        assert(targetRecord, ("redirect failed: named route \"" + name + "\" not found."));
+      }
+      return match({
+        _normalized: true,
+        name: name,
+        query: query,
+        hash: hash,
+        params: params
+      }, undefined, location)
+    } else if (path) {
+      // 1. resolve relative redirect
+      var rawPath = resolveRecordPath(path, record);
+      // 2. resolve params
+      var resolvedPath = fillParams(rawPath, params, ("redirect route with path \"" + rawPath + "\""));
+      // 3. rematch with existing query and hash
+      return match({
+        _normalized: true,
+        path: resolvedPath,
+        query: query,
+        hash: hash
+      }, undefined, location)
+    } else {
+      if (process.env.NODE_ENV !== 'production') {
+        warn(false, ("invalid redirect option: " + (JSON.stringify(redirect))));
+      }
+      return _createRoute(null, location)
+    }
+  }
+
+  function alias (
+    record,
+    location,
+    matchAs
+  ) {
+    var aliasedPath = fillParams(matchAs, location.params, ("aliased route with path \"" + matchAs + "\""));
+    var aliasedMatch = match({
+      _normalized: true,
+      path: aliasedPath
+    });
+    if (aliasedMatch) {
+      var matched = aliasedMatch.matched;
+      var aliasedRecord = matched[matched.length - 1];
+      location.params = aliasedMatch.params;
+      return _createRoute(aliasedRecord, location)
+    }
+    return _createRoute(null, location)
+  }
+
+  function _createRoute (
+    record,
+    location,
+    redirectedFrom
+  ) {
+    if (record && record.redirect) {
+      return redirect(record, redirectedFrom || location)
+    }
+    if (record && record.matchAs) {
+      return alias(record, location, record.matchAs)
+    }
+    return createRoute(record, location, redirectedFrom, router)
+  }
+
+  return {
+    match: match,
+    addRoutes: addRoutes
+  }
+}
+
+function matchRoute (
+  regex,
+  path,
+  params
+) {
+  var m = path.match(regex);
+
+  if (!m) {
+    return false
+  } else if (!params) {
+    return true
+  }
+
+  for (var i = 1, len = m.length; i < len; ++i) {
+    var key = regex.keys[i - 1];
+    var val = typeof m[i] === 'string' ? decodeURIComponent(m[i]) : m[i];
+    if (key) {
+      // Fix #1994: using * with props: true generates a param named 0
+      params[key.name || 'pathMatch'] = val;
+    }
+  }
+
+  return true
+}
+
+function resolveRecordPath (path, record) {
+  return resolvePath(path, record.parent ? record.parent.path : '/', true)
+}
+
+/*  */
+
+var positionStore = Object.create(null);
+
+function setupScroll () {
+  // Fix for #1585 for Firefox
+  // Fix for #2195 Add optional third attribute to workaround a bug in safari https://bugs.webkit.org/show_bug.cgi?id=182678
+  window.history.replaceState({ key: getStateKey() }, '', window.location.href.replace(window.location.origin, ''));
+  window.addEventListener('popstate', function (e) {
+    saveScrollPosition();
+    if (e.state && e.state.key) {
+      setStateKey(e.state.key);
+    }
+  });
+}
+
+function handleScroll (
+  router,
+  to,
+  from,
+  isPop
+) {
+  if (!router.app) {
+    return
+  }
+
+  var behavior = router.options.scrollBehavior;
+  if (!behavior) {
+    return
+  }
+
+  if (process.env.NODE_ENV !== 'production') {
+    assert(typeof behavior === 'function', "scrollBehavior must be a function");
+  }
+
+  // wait until re-render finishes before scrolling
+  router.app.$nextTick(function () {
+    var position = getScrollPosition();
+    var shouldScroll = behavior.call(router, to, from, isPop ? position : null);
+
+    if (!shouldScroll) {
+      return
+    }
+
+    if (typeof shouldScroll.then === 'function') {
+      shouldScroll.then(function (shouldScroll) {
+        scrollToPosition((shouldScroll), position);
+      }).catch(function (err) {
+        if (process.env.NODE_ENV !== 'production') {
+          assert(false, err.toString());
+        }
+      });
+    } else {
+      scrollToPosition(shouldScroll, position);
+    }
+  });
+}
+
+function saveScrollPosition () {
+  var key = getStateKey();
+  if (key) {
+    positionStore[key] = {
+      x: window.pageXOffset,
+      y: window.pageYOffset
+    };
+  }
+}
+
+function getScrollPosition () {
+  var key = getStateKey();
+  if (key) {
+    return positionStore[key]
+  }
+}
+
+function getElementPosition (el, offset) {
+  var docEl = document.documentElement;
+  var docRect = docEl.getBoundingClientRect();
+  var elRect = el.getBoundingClientRect();
+  return {
+    x: elRect.left - docRect.left - offset.x,
+    y: elRect.top - docRect.top - offset.y
+  }
+}
+
+function isValidPosition (obj) {
+  return isNumber(obj.x) || isNumber(obj.y)
+}
+
+function normalizePosition (obj) {
+  return {
+    x: isNumber(obj.x) ? obj.x : window.pageXOffset,
+    y: isNumber(obj.y) ? obj.y : window.pageYOffset
+  }
+}
+
+function normalizeOffset (obj) {
+  return {
+    x: isNumber(obj.x) ? obj.x : 0,
+    y: isNumber(obj.y) ? obj.y : 0
+  }
+}
+
+function isNumber (v) {
+  return typeof v === 'number'
+}
+
+function scrollToPosition (shouldScroll, position) {
+  var isObject = typeof shouldScroll === 'object';
+  if (isObject && typeof shouldScroll.selector === 'string') {
+    var el = document.querySelector(shouldScroll.selector);
+    if (el) {
+      var offset = shouldScroll.offset && typeof shouldScroll.offset === 'object' ? shouldScroll.offset : {};
+      offset = normalizeOffset(offset);
+      position = getElementPosition(el, offset);
+    } else if (isValidPosition(shouldScroll)) {
+      position = normalizePosition(shouldScroll);
+    }
+  } else if (isObject && isValidPosition(shouldScroll)) {
+    position = normalizePosition(shouldScroll);
+  }
+
+  if (position) {
+    window.scrollTo(position.x, position.y);
+  }
+}
+
+/*  */
+
+var supportsPushState = inBrowser && (function () {
+  var ua = window.navigator.userAgent;
+
+  if (
+    (ua.indexOf('Android 2.') !== -1 || ua.indexOf('Android 4.0') !== -1) &&
+    ua.indexOf('Mobile Safari') !== -1 &&
+    ua.indexOf('Chrome') === -1 &&
+    ua.indexOf('Windows Phone') === -1
+  ) {
+    return false
+  }
+
+  return window.history && 'pushState' in window.history
+})();
+
+// use User Timing api (if present) for more accurate key precision
+var Time = inBrowser && window.performance && window.performance.now
+  ? window.performance
+  : Date;
+
+var _key = genKey();
+
+function genKey () {
+  return Time.now().toFixed(3)
+}
+
+function getStateKey () {
+  return _key
+}
+
+function setStateKey (key) {
+  _key = key;
+}
+
+function pushState (url, replace) {
+  saveScrollPosition();
+  // try...catch the pushState call to get around Safari
+  // DOM Exception 18 where it limits to 100 pushState calls
+  var history = window.history;
+  try {
+    if (replace) {
+      history.replaceState({ key: _key }, '', url);
+    } else {
+      _key = genKey();
+      history.pushState({ key: _key }, '', url);
+    }
+  } catch (e) {
+    window.location[replace ? 'replace' : 'assign'](url);
+  }
+}
+
+function replaceState (url) {
+  pushState(url, true);
+}
+
+/*  */
+
+function runQueue (queue, fn, cb) {
+  var step = function (index) {
+    if (index >= queue.length) {
+      cb();
+    } else {
+      if (queue[index]) {
+        fn(queue[index], function () {
+          step(index + 1);
+        });
+      } else {
+        step(index + 1);
+      }
+    }
+  };
+  step(0);
+}
+
+/*  */
+
+function resolveAsyncComponents (matched) {
+  return function (to, from, next) {
+    var hasAsync = false;
+    var pending = 0;
+    var error = null;
+
+    flatMapComponents(matched, function (def, _, match, key) {
+      // if it's a function and doesn't have cid attached,
+      // assume it's an async component resolve function.
+      // we are not using Vue's default async resolving mechanism because
+      // we want to halt the navigation until the incoming component has been
+      // resolved.
+      if (typeof def === 'function' && def.cid === undefined) {
+        hasAsync = true;
+        pending++;
+
+        var resolve = once(function (resolvedDef) {
+          if (isESModule(resolvedDef)) {
+            resolvedDef = resolvedDef.default;
+          }
+          // save resolved on async factory in case it's used elsewhere
+          def.resolved = typeof resolvedDef === 'function'
+            ? resolvedDef
+            : _Vue.extend(resolvedDef);
+          match.components[key] = resolvedDef;
+          pending--;
+          if (pending <= 0) {
+            next();
+          }
+        });
+
+        var reject = once(function (reason) {
+          var msg = "Failed to resolve async component " + key + ": " + reason;
+          process.env.NODE_ENV !== 'production' && warn(false, msg);
+          if (!error) {
+            error = isError(reason)
+              ? reason
+              : new Error(msg);
+            next(error);
+          }
+        });
+
+        var res;
+        try {
+          res = def(resolve, reject);
+        } catch (e) {
+          reject(e);
+        }
+        if (res) {
+          if (typeof res.then === 'function') {
+            res.then(resolve, reject);
+          } else {
+            // new syntax in Vue 2.3
+            var comp = res.component;
+            if (comp && typeof comp.then === 'function') {
+              comp.then(resolve, reject);
+            }
+          }
+        }
+      }
+    });
+
+    if (!hasAsync) { next(); }
+  }
+}
+
+function flatMapComponents (
+  matched,
+  fn
+) {
+  return flatten(matched.map(function (m) {
+    return Object.keys(m.components).map(function (key) { return fn(
+      m.components[key],
+      m.instances[key],
+      m, key
+    ); })
+  }))
+}
+
+function flatten (arr) {
+  return Array.prototype.concat.apply([], arr)
+}
+
+var hasSymbol =
+  typeof Symbol === 'function' &&
+  typeof Symbol.toStringTag === 'symbol';
+
+function isESModule (obj) {
+  return obj.__esModule || (hasSymbol && obj[Symbol.toStringTag] === 'Module')
+}
+
+// in Webpack 2, require.ensure now also returns a Promise
+// so the resolve/reject functions may get called an extra time
+// if the user uses an arrow function shorthand that happens to
+// return that Promise.
+function once (fn) {
+  var called = false;
+  return function () {
+    var args = [], len = arguments.length;
+    while ( len-- ) args[ len ] = arguments[ len ];
+
+    if (called) { return }
+    called = true;
+    return fn.apply(this, args)
+  }
+}
+
+/*  */
+
+var History = function History (router, base) {
+  this.router = router;
+  this.base = normalizeBase(base);
+  // start with a route object that stands for "nowhere"
+  this.current = START;
+  this.pending = null;
+  this.ready = false;
+  this.readyCbs = [];
+  this.readyErrorCbs = [];
+  this.errorCbs = [];
+};
+
+History.prototype.listen = function listen (cb) {
+  this.cb = cb;
+};
+
+History.prototype.onReady = function onReady (cb, errorCb) {
+  if (this.ready) {
+    cb();
+  } else {
+    this.readyCbs.push(cb);
+    if (errorCb) {
+      this.readyErrorCbs.push(errorCb);
+    }
+  }
+};
+
+History.prototype.onError = function onError (errorCb) {
+  this.errorCbs.push(errorCb);
+};
+
+History.prototype.transitionTo = function transitionTo (location, onComplete, onAbort) {
+    var this$1 = this;
+
+  var route = this.router.match(location, this.current);
+  this.confirmTransition(route, function () {
+    this$1.updateRoute(route);
+    onComplete && onComplete(route);
+    this$1.ensureURL();
+
+    // fire ready cbs once
+    if (!this$1.ready) {
+      this$1.ready = true;
+      this$1.readyCbs.forEach(function (cb) { cb(route); });
+    }
+  }, function (err) {
+    if (onAbort) {
+      onAbort(err);
+    }
+    if (err && !this$1.ready) {
+      this$1.ready = true;
+      this$1.readyErrorCbs.forEach(function (cb) { cb(err); });
+    }
+  });
+};
+
+History.prototype.confirmTransition = function confirmTransition (route, onComplete, onAbort) {
+    var this$1 = this;
+
+  var current = this.current;
+  var abort = function (err) {
+    if (isError(err)) {
+      if (this$1.errorCbs.length) {
+        this$1.errorCbs.forEach(function (cb) { cb(err); });
+      } else {
+        warn(false, 'uncaught error during route navigation:');
+        console.error(err);
+      }
+    }
+    onAbort && onAbort(err);
+  };
+  if (
+    isSameRoute(route, current) &&
+    // in the case the route map has been dynamically appended to
+    route.matched.length === current.matched.length
+  ) {
+    this.ensureURL();
+    return abort()
+  }
+
+  var ref = resolveQueue(this.current.matched, route.matched);
+    var updated = ref.updated;
+    var deactivated = ref.deactivated;
+    var activated = ref.activated;
+
+  var queue = [].concat(
+    // in-component leave guards
+    extractLeaveGuards(deactivated),
+    // global before hooks
+    this.router.beforeHooks,
+    // in-component update hooks
+    extractUpdateHooks(updated),
+    // in-config enter guards
+    activated.map(function (m) { return m.beforeEnter; }),
+    // async components
+    resolveAsyncComponents(activated)
+  );
+
+  this.pending = route;
+  var iterator = function (hook, next) {
+    if (this$1.pending !== route) {
+      return abort()
+    }
+    try {
+      hook(route, current, function (to) {
+        if (to === false || isError(to)) {
+          // next(false) -> abort navigation, ensure current URL
+          this$1.ensureURL(true);
+          abort(to);
+        } else if (
+          typeof to === 'string' ||
+          (typeof to === 'object' && (
+            typeof to.path === 'string' ||
+            typeof to.name === 'string'
+          ))
+        ) {
+          // next('/') or next({ path: '/' }) -> redirect
+          abort();
+          if (typeof to === 'object' && to.replace) {
+            this$1.replace(to);
+          } else {
+            this$1.push(to);
+          }
+        } else {
+          // confirm transition and pass on the value
+          next(to);
+        }
+      });
+    } catch (e) {
+      abort(e);
+    }
+  };
+
+  runQueue(queue, iterator, function () {
+    var postEnterCbs = [];
+    var isValid = function () { return this$1.current === route; };
+    // wait until async components are resolved before
+    // extracting in-component enter guards
+    var enterGuards = extractEnterGuards(activated, postEnterCbs, isValid);
+    var queue = enterGuards.concat(this$1.router.resolveHooks);
+    runQueue(queue, iterator, function () {
+      if (this$1.pending !== route) {
+        return abort()
+      }
+      this$1.pending = null;
+      onComplete(route);
+      if (this$1.router.app) {
+        this$1.router.app.$nextTick(function () {
+          postEnterCbs.forEach(function (cb) { cb(); });
+        });
+      }
+    });
+  });
+};
+
+History.prototype.updateRoute = function updateRoute (route) {
+  var prev = this.current;
+  this.current = route;
+  this.cb && this.cb(route);
+  this.router.afterHooks.forEach(function (hook) {
+    hook && hook(route, prev);
+  });
+};
+
+function normalizeBase (base) {
+  if (!base) {
+    if (inBrowser) {
+      // respect <base> tag
+      var baseEl = document.querySelector('base');
+      base = (baseEl && baseEl.getAttribute('href')) || '/';
+      // strip full URL origin
+      base = base.replace(/^https?:\/\/[^\/]+/, '');
+    } else {
+      base = '/';
+    }
+  }
+  // make sure there's the starting slash
+  if (base.charAt(0) !== '/') {
+    base = '/' + base;
+  }
+  // remove trailing slash
+  return base.replace(/\/$/, '')
+}
+
+function resolveQueue (
+  current,
+  next
+) {
+  var i;
+  var max = Math.max(current.length, next.length);
+  for (i = 0; i < max; i++) {
+    if (current[i] !== next[i]) {
+      break
+    }
+  }
+  return {
+    updated: next.slice(0, i),
+    activated: next.slice(i),
+    deactivated: current.slice(i)
+  }
+}
+
+function extractGuards (
+  records,
+  name,
+  bind,
+  reverse
+) {
+  var guards = flatMapComponents(records, function (def, instance, match, key) {
+    var guard = extractGuard(def, name);
+    if (guard) {
+      return Array.isArray(guard)
+        ? guard.map(function (guard) { return bind(guard, instance, match, key); })
+        : bind(guard, instance, match, key)
+    }
+  });
+  return flatten(reverse ? guards.reverse() : guards)
+}
+
+function extractGuard (
+  def,
+  key
+) {
+  if (typeof def !== 'function') {
+    // extend now so that global mixins are applied.
+    def = _Vue.extend(def);
+  }
+  return def.options[key]
+}
+
+function extractLeaveGuards (deactivated) {
+  return extractGuards(deactivated, 'beforeRouteLeave', bindGuard, true)
+}
+
+function extractUpdateHooks (updated) {
+  return extractGuards(updated, 'beforeRouteUpdate', bindGuard)
+}
+
+function bindGuard (guard, instance) {
+  if (instance) {
+    return function boundRouteGuard () {
+      return guard.apply(instance, arguments)
+    }
+  }
+}
+
+function extractEnterGuards (
+  activated,
+  cbs,
+  isValid
+) {
+  return extractGuards(activated, 'beforeRouteEnter', function (guard, _, match, key) {
+    return bindEnterGuard(guard, match, key, cbs, isValid)
+  })
+}
+
+function bindEnterGuard (
+  guard,
+  match,
+  key,
+  cbs,
+  isValid
+) {
+  return function routeEnterGuard (to, from, next) {
+    return guard(to, from, function (cb) {
+      next(cb);
+      if (typeof cb === 'function') {
+        cbs.push(function () {
+          // #750
+          // if a router-view is wrapped with an out-in transition,
+          // the instance may not have been registered at this time.
+          // we will need to poll for registration until current route
+          // is no longer valid.
+          poll(cb, match.instances, key, isValid);
+        });
+      }
+    })
+  }
+}
+
+function poll (
+  cb, // somehow flow cannot infer this is a function
+  instances,
+  key,
+  isValid
+) {
+  if (
+    instances[key] &&
+    !instances[key]._isBeingDestroyed // do not reuse being destroyed instance
+  ) {
+    cb(instances[key]);
+  } else if (isValid()) {
+    setTimeout(function () {
+      poll(cb, instances, key, isValid);
+    }, 16);
+  }
+}
+
+/*  */
+
+var HTML5History = (function (History$$1) {
+  function HTML5History (router, base) {
+    var this$1 = this;
+
+    History$$1.call(this, router, base);
+
+    var expectScroll = router.options.scrollBehavior;
+    var supportsScroll = supportsPushState && expectScroll;
+
+    if (supportsScroll) {
+      setupScroll();
+    }
+
+    var initLocation = getLocation(this.base);
+    window.addEventListener('popstate', function (e) {
+      var current = this$1.current;
+
+      // Avoiding first `popstate` event dispatched in some browsers but first
+      // history route not updated since async guard at the same time.
+      var location = getLocation(this$1.base);
+      if (this$1.current === START && location === initLocation) {
+        return
+      }
+
+      this$1.transitionTo(location, function (route) {
+        if (supportsScroll) {
+          handleScroll(router, route, current, true);
+        }
+      });
+    });
+  }
+
+  if ( History$$1 ) HTML5History.__proto__ = History$$1;
+  HTML5History.prototype = Object.create( History$$1 && History$$1.prototype );
+  HTML5History.prototype.constructor = HTML5History;
+
+  HTML5History.prototype.go = function go (n) {
+    window.history.go(n);
+  };
+
+  HTML5History.prototype.push = function push (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    var ref = this;
+    var fromRoute = ref.current;
+    this.transitionTo(location, function (route) {
+      pushState(cleanPath(this$1.base + route.fullPath));
+      handleScroll(this$1.router, route, fromRoute, false);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  HTML5History.prototype.replace = function replace (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    var ref = this;
+    var fromRoute = ref.current;
+    this.transitionTo(location, function (route) {
+      replaceState(cleanPath(this$1.base + route.fullPath));
+      handleScroll(this$1.router, route, fromRoute, false);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  HTML5History.prototype.ensureURL = function ensureURL (push) {
+    if (getLocation(this.base) !== this.current.fullPath) {
+      var current = cleanPath(this.base + this.current.fullPath);
+      push ? pushState(current) : replaceState(current);
+    }
+  };
+
+  HTML5History.prototype.getCurrentLocation = function getCurrentLocation () {
+    return getLocation(this.base)
+  };
+
+  return HTML5History;
+}(History));
+
+function getLocation (base) {
+  var path = decodeURI(window.location.pathname);
+  if (base && path.indexOf(base) === 0) {
+    path = path.slice(base.length);
+  }
+  return (path || '/') + window.location.search + window.location.hash
+}
+
+/*  */
+
+var HashHistory = (function (History$$1) {
+  function HashHistory (router, base, fallback) {
+    History$$1.call(this, router, base);
+    // check history fallback deeplinking
+    if (fallback && checkFallback(this.base)) {
+      return
+    }
+    ensureSlash();
+  }
+
+  if ( History$$1 ) HashHistory.__proto__ = History$$1;
+  HashHistory.prototype = Object.create( History$$1 && History$$1.prototype );
+  HashHistory.prototype.constructor = HashHistory;
+
+  // this is delayed until the app mounts
+  // to avoid the hashchange listener being fired too early
+  HashHistory.prototype.setupListeners = function setupListeners () {
+    var this$1 = this;
+
+    var router = this.router;
+    var expectScroll = router.options.scrollBehavior;
+    var supportsScroll = supportsPushState && expectScroll;
+
+    if (supportsScroll) {
+      setupScroll();
+    }
+
+    window.addEventListener(supportsPushState ? 'popstate' : 'hashchange', function () {
+      var current = this$1.current;
+      if (!ensureSlash()) {
+        return
+      }
+      this$1.transitionTo(getHash(), function (route) {
+        if (supportsScroll) {
+          handleScroll(this$1.router, route, current, true);
+        }
+        if (!supportsPushState) {
+          replaceHash(route.fullPath);
+        }
+      });
+    });
+  };
+
+  HashHistory.prototype.push = function push (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    var ref = this;
+    var fromRoute = ref.current;
+    this.transitionTo(location, function (route) {
+      pushHash(route.fullPath);
+      handleScroll(this$1.router, route, fromRoute, false);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  HashHistory.prototype.replace = function replace (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    var ref = this;
+    var fromRoute = ref.current;
+    this.transitionTo(location, function (route) {
+      replaceHash(route.fullPath);
+      handleScroll(this$1.router, route, fromRoute, false);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  HashHistory.prototype.go = function go (n) {
+    window.history.go(n);
+  };
+
+  HashHistory.prototype.ensureURL = function ensureURL (push) {
+    var current = this.current.fullPath;
+    if (getHash() !== current) {
+      push ? pushHash(current) : replaceHash(current);
+    }
+  };
+
+  HashHistory.prototype.getCurrentLocation = function getCurrentLocation () {
+    return getHash()
+  };
+
+  return HashHistory;
+}(History));
+
+function checkFallback (base) {
+  var location = getLocation(base);
+  if (!/^\/#/.test(location)) {
+    window.location.replace(
+      cleanPath(base + '/#' + location)
+    );
+    return true
+  }
+}
+
+function ensureSlash () {
+  var path = getHash();
+  if (path.charAt(0) === '/') {
+    return true
+  }
+  replaceHash('/' + path);
+  return false
+}
+
+function getHash () {
+  // We can't use window.location.hash here because it's not
+  // consistent across browsers - Firefox will pre-decode it!
+  var href = window.location.href;
+  var index = href.indexOf('#');
+  return index === -1 ? '' : decodeURI(href.slice(index + 1))
+}
+
+function getUrl (path) {
+  var href = window.location.href;
+  var i = href.indexOf('#');
+  var base = i >= 0 ? href.slice(0, i) : href;
+  return (base + "#" + path)
+}
+
+function pushHash (path) {
+  if (supportsPushState) {
+    pushState(getUrl(path));
+  } else {
+    window.location.hash = path;
+  }
+}
+
+function replaceHash (path) {
+  if (supportsPushState) {
+    replaceState(getUrl(path));
+  } else {
+    window.location.replace(getUrl(path));
+  }
+}
+
+/*  */
+
+var AbstractHistory = (function (History$$1) {
+  function AbstractHistory (router, base) {
+    History$$1.call(this, router, base);
+    this.stack = [];
+    this.index = -1;
+  }
+
+  if ( History$$1 ) AbstractHistory.__proto__ = History$$1;
+  AbstractHistory.prototype = Object.create( History$$1 && History$$1.prototype );
+  AbstractHistory.prototype.constructor = AbstractHistory;
+
+  AbstractHistory.prototype.push = function push (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    this.transitionTo(location, function (route) {
+      this$1.stack = this$1.stack.slice(0, this$1.index + 1).concat(route);
+      this$1.index++;
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  AbstractHistory.prototype.replace = function replace (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    this.transitionTo(location, function (route) {
+      this$1.stack = this$1.stack.slice(0, this$1.index).concat(route);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  AbstractHistory.prototype.go = function go (n) {
+    var this$1 = this;
+
+    var targetIndex = this.index + n;
+    if (targetIndex < 0 || targetIndex >= this.stack.length) {
+      return
+    }
+    var route = this.stack[targetIndex];
+    this.confirmTransition(route, function () {
+      this$1.index = targetIndex;
+      this$1.updateRoute(route);
+    });
+  };
+
+  AbstractHistory.prototype.getCurrentLocation = function getCurrentLocation () {
+    var current = this.stack[this.stack.length - 1];
+    return current ? current.fullPath : '/'
+  };
+
+  AbstractHistory.prototype.ensureURL = function ensureURL () {
+    // noop
+  };
+
+  return AbstractHistory;
+}(History));
+
+/*  */
+
+
+
+var VueRouter = function VueRouter (options) {
+  if ( options === void 0 ) options = {};
+
+  this.app = null;
+  this.apps = [];
+  this.options = options;
+  this.beforeHooks = [];
+  this.resolveHooks = [];
+  this.afterHooks = [];
+  this.matcher = createMatcher(options.routes || [], this);
+
+  var mode = options.mode || 'hash';
+  this.fallback = mode === 'history' && !supportsPushState && options.fallback !== false;
+  if (this.fallback) {
+    mode = 'hash';
+  }
+  if (!inBrowser) {
+    mode = 'abstract';
+  }
+  this.mode = mode;
+
+  switch (mode) {
+    case 'history':
+      this.history = new HTML5History(this, options.base);
+      break
+    case 'hash':
+      this.history = new HashHistory(this, options.base, this.fallback);
+      break
+    case 'abstract':
+      this.history = new AbstractHistory(this, options.base);
+      break
+    default:
+      if (process.env.NODE_ENV !== 'production') {
+        assert(false, ("invalid mode: " + mode));
+      }
+  }
+};
+
+var prototypeAccessors = { currentRoute: { configurable: true } };
+
+VueRouter.prototype.match = function match (
+  raw,
+  current,
+  redirectedFrom
+) {
+  return this.matcher.match(raw, current, redirectedFrom)
+};
+
+prototypeAccessors.currentRoute.get = function () {
+  return this.history && this.history.current
+};
+
+VueRouter.prototype.init = function init (app /* Vue component instance */) {
+    var this$1 = this;
+
+  process.env.NODE_ENV !== 'production' && assert(
+    install.installed,
+    "not installed. Make sure to call `Vue.use(VueRouter)` " +
+    "before creating root instance."
+  );
+
+  this.apps.push(app);
+
+  // main app already initialized.
+  if (this.app) {
+    return
+  }
+
+  this.app = app;
+
+  var history = this.history;
+
+  if (history instanceof HTML5History) {
+    history.transitionTo(history.getCurrentLocation());
+  } else if (history instanceof HashHistory) {
+    var setupHashListener = function () {
+      history.setupListeners();
+    };
+    history.transitionTo(
+      history.getCurrentLocation(),
+      setupHashListener,
+      setupHashListener
+    );
+  }
+
+  history.listen(function (route) {
+    this$1.apps.forEach(function (app) {
+      app._route = route;
+    });
+  });
+};
+
+VueRouter.prototype.beforeEach = function beforeEach (fn) {
+  return registerHook(this.beforeHooks, fn)
+};
+
+VueRouter.prototype.beforeResolve = function beforeResolve (fn) {
+  return registerHook(this.resolveHooks, fn)
+};
+
+VueRouter.prototype.afterEach = function afterEach (fn) {
+  return registerHook(this.afterHooks, fn)
+};
+
+VueRouter.prototype.onReady = function onReady (cb, errorCb) {
+  this.history.onReady(cb, errorCb);
+};
+
+VueRouter.prototype.onError = function onError (errorCb) {
+  this.history.onError(errorCb);
+};
+
+VueRouter.prototype.push = function push (location, onComplete, onAbort) {
+  this.history.push(location, onComplete, onAbort);
+};
+
+VueRouter.prototype.replace = function replace (location, onComplete, onAbort) {
+  this.history.replace(location, onComplete, onAbort);
+};
+
+VueRouter.prototype.go = function go (n) {
+  this.history.go(n);
+};
+
+VueRouter.prototype.back = function back () {
+  this.go(-1);
+};
+
+VueRouter.prototype.forward = function forward () {
+  this.go(1);
+};
+
+VueRouter.prototype.getMatchedComponents = function getMatchedComponents (to) {
+  var route = to
+    ? to.matched
+      ? to
+      : this.resolve(to).route
+    : this.currentRoute;
+  if (!route) {
+    return []
+  }
+  return [].concat.apply([], route.matched.map(function (m) {
+    return Object.keys(m.components).map(function (key) {
+      return m.components[key]
+    })
+  }))
+};
+
+VueRouter.prototype.resolve = function resolve (
+  to,
+  current,
+  append
+) {
+  var location = normalizeLocation(
+    to,
+    current || this.history.current,
+    append,
+    this
+  );
+  var route = this.match(location, current);
+  var fullPath = route.redirectedFrom || route.fullPath;
+  var base = this.history.base;
+  var href = createHref(base, fullPath, this.mode);
+  return {
+    location: location,
+    route: route,
+    href: href,
+    // for backwards compat
+    normalizedTo: location,
+    resolved: route
+  }
+};
+
+VueRouter.prototype.addRoutes = function addRoutes (routes) {
+  this.matcher.addRoutes(routes);
+  if (this.history.current !== START) {
+    this.history.transitionTo(this.history.getCurrentLocation());
+  }
+};
+
+Object.defineProperties( VueRouter.prototype, prototypeAccessors );
+
+function registerHook (list, fn) {
+  list.push(fn);
+  return function () {
+    var i = list.indexOf(fn);
+    if (i > -1) { list.splice(i, 1); }
+  }
+}
+
+function createHref (base, fullPath, mode) {
+  var path = mode === 'hash' ? '#' + fullPath : fullPath;
+  return base ? cleanPath(base + '/' + path) : path
+}
+
+VueRouter.install = install;
+VueRouter.version = '3.0.2';
+
+if (inBrowser && window.Vue) {
+  window.Vue.use(VueRouter);
+}
+
+module.exports = VueRouter;
diff --git a/node_modules/vue-router/dist/vue-router.esm.js b/node_modules/vue-router/dist/vue-router.esm.js
new file mode 100644
index 0000000..77d5e8b
--- /dev/null
+++ b/node_modules/vue-router/dist/vue-router.esm.js
@@ -0,0 +1,2618 @@
+/*!
+  * vue-router v3.0.2
+  * (c) 2018 Evan You
+  * @license MIT
+  */
+/*  */
+
+function assert (condition, message) {
+  if (!condition) {
+    throw new Error(("[vue-router] " + message))
+  }
+}
+
+function warn (condition, message) {
+  if (process.env.NODE_ENV !== 'production' && !condition) {
+    typeof console !== 'undefined' && console.warn(("[vue-router] " + message));
+  }
+}
+
+function isError (err) {
+  return Object.prototype.toString.call(err).indexOf('Error') > -1
+}
+
+function extend (a, b) {
+  for (var key in b) {
+    a[key] = b[key];
+  }
+  return a
+}
+
+var View = {
+  name: 'RouterView',
+  functional: true,
+  props: {
+    name: {
+      type: String,
+      default: 'default'
+    }
+  },
+  render: function render (_, ref) {
+    var props = ref.props;
+    var children = ref.children;
+    var parent = ref.parent;
+    var data = ref.data;
+
+    // used by devtools to display a router-view badge
+    data.routerView = true;
+
+    // directly use parent context's createElement() function
+    // so that components rendered by router-view can resolve named slots
+    var h = parent.$createElement;
+    var name = props.name;
+    var route = parent.$route;
+    var cache = parent._routerViewCache || (parent._routerViewCache = {});
+
+    // determine current view depth, also check to see if the tree
+    // has been toggled inactive but kept-alive.
+    var depth = 0;
+    var inactive = false;
+    while (parent && parent._routerRoot !== parent) {
+      if (parent.$vnode && parent.$vnode.data.routerView) {
+        depth++;
+      }
+      if (parent._inactive) {
+        inactive = true;
+      }
+      parent = parent.$parent;
+    }
+    data.routerViewDepth = depth;
+
+    // render previous view if the tree is inactive and kept-alive
+    if (inactive) {
+      return h(cache[name], data, children)
+    }
+
+    var matched = route.matched[depth];
+    // render empty node if no matched route
+    if (!matched) {
+      cache[name] = null;
+      return h()
+    }
+
+    var component = cache[name] = matched.components[name];
+
+    // attach instance registration hook
+    // this will be called in the instance's injected lifecycle hooks
+    data.registerRouteInstance = function (vm, val) {
+      // val could be undefined for unregistration
+      var current = matched.instances[name];
+      if (
+        (val && current !== vm) ||
+        (!val && current === vm)
+      ) {
+        matched.instances[name] = val;
+      }
+    }
+
+    // also register instance in prepatch hook
+    // in case the same component instance is reused across different routes
+    ;(data.hook || (data.hook = {})).prepatch = function (_, vnode) {
+      matched.instances[name] = vnode.componentInstance;
+    };
+
+    // resolve props
+    var propsToPass = data.props = resolveProps(route, matched.props && matched.props[name]);
+    if (propsToPass) {
+      // clone to prevent mutation
+      propsToPass = data.props = extend({}, propsToPass);
+      // pass non-declared props as attrs
+      var attrs = data.attrs = data.attrs || {};
+      for (var key in propsToPass) {
+        if (!component.props || !(key in component.props)) {
+          attrs[key] = propsToPass[key];
+          delete propsToPass[key];
+        }
+      }
+    }
+
+    return h(component, data, children)
+  }
+}
+
+function resolveProps (route, config) {
+  switch (typeof config) {
+    case 'undefined':
+      return
+    case 'object':
+      return config
+    case 'function':
+      return config(route)
+    case 'boolean':
+      return config ? route.params : undefined
+    default:
+      if (process.env.NODE_ENV !== 'production') {
+        warn(
+          false,
+          "props in \"" + (route.path) + "\" is a " + (typeof config) + ", " +
+          "expecting an object, function or boolean."
+        );
+      }
+  }
+}
+
+/*  */
+
+var encodeReserveRE = /[!'()*]/g;
+var encodeReserveReplacer = function (c) { return '%' + c.charCodeAt(0).toString(16); };
+var commaRE = /%2C/g;
+
+// fixed encodeURIComponent which is more conformant to RFC3986:
+// - escapes [!'()*]
+// - preserve commas
+var encode = function (str) { return encodeURIComponent(str)
+  .replace(encodeReserveRE, encodeReserveReplacer)
+  .replace(commaRE, ','); };
+
+var decode = decodeURIComponent;
+
+function resolveQuery (
+  query,
+  extraQuery,
+  _parseQuery
+) {
+  if ( extraQuery === void 0 ) extraQuery = {};
+
+  var parse = _parseQuery || parseQuery;
+  var parsedQuery;
+  try {
+    parsedQuery = parse(query || '');
+  } catch (e) {
+    process.env.NODE_ENV !== 'production' && warn(false, e.message);
+    parsedQuery = {};
+  }
+  for (var key in extraQuery) {
+    parsedQuery[key] = extraQuery[key];
+  }
+  return parsedQuery
+}
+
+function parseQuery (query) {
+  var res = {};
+
+  query = query.trim().replace(/^(\?|#|&)/, '');
+
+  if (!query) {
+    return res
+  }
+
+  query.split('&').forEach(function (param) {
+    var parts = param.replace(/\+/g, ' ').split('=');
+    var key = decode(parts.shift());
+    var val = parts.length > 0
+      ? decode(parts.join('='))
+      : null;
+
+    if (res[key] === undefined) {
+      res[key] = val;
+    } else if (Array.isArray(res[key])) {
+      res[key].push(val);
+    } else {
+      res[key] = [res[key], val];
+    }
+  });
+
+  return res
+}
+
+function stringifyQuery (obj) {
+  var res = obj ? Object.keys(obj).map(function (key) {
+    var val = obj[key];
+
+    if (val === undefined) {
+      return ''
+    }
+
+    if (val === null) {
+      return encode(key)
+    }
+
+    if (Array.isArray(val)) {
+      var result = [];
+      val.forEach(function (val2) {
+        if (val2 === undefined) {
+          return
+        }
+        if (val2 === null) {
+          result.push(encode(key));
+        } else {
+          result.push(encode(key) + '=' + encode(val2));
+        }
+      });
+      return result.join('&')
+    }
+
+    return encode(key) + '=' + encode(val)
+  }).filter(function (x) { return x.length > 0; }).join('&') : null;
+  return res ? ("?" + res) : ''
+}
+
+/*  */
+
+var trailingSlashRE = /\/?$/;
+
+function createRoute (
+  record,
+  location,
+  redirectedFrom,
+  router
+) {
+  var stringifyQuery$$1 = router && router.options.stringifyQuery;
+
+  var query = location.query || {};
+  try {
+    query = clone(query);
+  } catch (e) {}
+
+  var route = {
+    name: location.name || (record && record.name),
+    meta: (record && record.meta) || {},
+    path: location.path || '/',
+    hash: location.hash || '',
+    query: query,
+    params: location.params || {},
+    fullPath: getFullPath(location, stringifyQuery$$1),
+    matched: record ? formatMatch(record) : []
+  };
+  if (redirectedFrom) {
+    route.redirectedFrom = getFullPath(redirectedFrom, stringifyQuery$$1);
+  }
+  return Object.freeze(route)
+}
+
+function clone (value) {
+  if (Array.isArray(value)) {
+    return value.map(clone)
+  } else if (value && typeof value === 'object') {
+    var res = {};
+    for (var key in value) {
+      res[key] = clone(value[key]);
+    }
+    return res
+  } else {
+    return value
+  }
+}
+
+// the starting route that represents the initial state
+var START = createRoute(null, {
+  path: '/'
+});
+
+function formatMatch (record) {
+  var res = [];
+  while (record) {
+    res.unshift(record);
+    record = record.parent;
+  }
+  return res
+}
+
+function getFullPath (
+  ref,
+  _stringifyQuery
+) {
+  var path = ref.path;
+  var query = ref.query; if ( query === void 0 ) query = {};
+  var hash = ref.hash; if ( hash === void 0 ) hash = '';
+
+  var stringify = _stringifyQuery || stringifyQuery;
+  return (path || '/') + stringify(query) + hash
+}
+
+function isSameRoute (a, b) {
+  if (b === START) {
+    return a === b
+  } else if (!b) {
+    return false
+  } else if (a.path && b.path) {
+    return (
+      a.path.replace(trailingSlashRE, '') === b.path.replace(trailingSlashRE, '') &&
+      a.hash === b.hash &&
+      isObjectEqual(a.query, b.query)
+    )
+  } else if (a.name && b.name) {
+    return (
+      a.name === b.name &&
+      a.hash === b.hash &&
+      isObjectEqual(a.query, b.query) &&
+      isObjectEqual(a.params, b.params)
+    )
+  } else {
+    return false
+  }
+}
+
+function isObjectEqual (a, b) {
+  if ( a === void 0 ) a = {};
+  if ( b === void 0 ) b = {};
+
+  // handle null value #1566
+  if (!a || !b) { return a === b }
+  var aKeys = Object.keys(a);
+  var bKeys = Object.keys(b);
+  if (aKeys.length !== bKeys.length) {
+    return false
+  }
+  return aKeys.every(function (key) {
+    var aVal = a[key];
+    var bVal = b[key];
+    // check nested equality
+    if (typeof aVal === 'object' && typeof bVal === 'object') {
+      return isObjectEqual(aVal, bVal)
+    }
+    return String(aVal) === String(bVal)
+  })
+}
+
+function isIncludedRoute (current, target) {
+  return (
+    current.path.replace(trailingSlashRE, '/').indexOf(
+      target.path.replace(trailingSlashRE, '/')
+    ) === 0 &&
+    (!target.hash || current.hash === target.hash) &&
+    queryIncludes(current.query, target.query)
+  )
+}
+
+function queryIncludes (current, target) {
+  for (var key in target) {
+    if (!(key in current)) {
+      return false
+    }
+  }
+  return true
+}
+
+/*  */
+
+// work around weird flow bug
+var toTypes = [String, Object];
+var eventTypes = [String, Array];
+
+var Link = {
+  name: 'RouterLink',
+  props: {
+    to: {
+      type: toTypes,
+      required: true
+    },
+    tag: {
+      type: String,
+      default: 'a'
+    },
+    exact: Boolean,
+    append: Boolean,
+    replace: Boolean,
+    activeClass: String,
+    exactActiveClass: String,
+    event: {
+      type: eventTypes,
+      default: 'click'
+    }
+  },
+  render: function render (h) {
+    var this$1 = this;
+
+    var router = this.$router;
+    var current = this.$route;
+    var ref = router.resolve(this.to, current, this.append);
+    var location = ref.location;
+    var route = ref.route;
+    var href = ref.href;
+
+    var classes = {};
+    var globalActiveClass = router.options.linkActiveClass;
+    var globalExactActiveClass = router.options.linkExactActiveClass;
+    // Support global empty active class
+    var activeClassFallback = globalActiveClass == null
+      ? 'router-link-active'
+      : globalActiveClass;
+    var exactActiveClassFallback = globalExactActiveClass == null
+      ? 'router-link-exact-active'
+      : globalExactActiveClass;
+    var activeClass = this.activeClass == null
+      ? activeClassFallback
+      : this.activeClass;
+    var exactActiveClass = this.exactActiveClass == null
+      ? exactActiveClassFallback
+      : this.exactActiveClass;
+    var compareTarget = location.path
+      ? createRoute(null, location, null, router)
+      : route;
+
+    classes[exactActiveClass] = isSameRoute(current, compareTarget);
+    classes[activeClass] = this.exact
+      ? classes[exactActiveClass]
+      : isIncludedRoute(current, compareTarget);
+
+    var handler = function (e) {
+      if (guardEvent(e)) {
+        if (this$1.replace) {
+          router.replace(location);
+        } else {
+          router.push(location);
+        }
+      }
+    };
+
+    var on = { click: guardEvent };
+    if (Array.isArray(this.event)) {
+      this.event.forEach(function (e) { on[e] = handler; });
+    } else {
+      on[this.event] = handler;
+    }
+
+    var data = {
+      class: classes
+    };
+
+    if (this.tag === 'a') {
+      data.on = on;
+      data.attrs = { href: href };
+    } else {
+      // find the first <a> child and apply listener and href
+      var a = findAnchor(this.$slots.default);
+      if (a) {
+        // in case the <a> is a static node
+        a.isStatic = false;
+        var aData = a.data = extend({}, a.data);
+        aData.on = on;
+        var aAttrs = a.data.attrs = extend({}, a.data.attrs);
+        aAttrs.href = href;
+      } else {
+        // doesn't have <a> child, apply listener to self
+        data.on = on;
+      }
+    }
+
+    return h(this.tag, data, this.$slots.default)
+  }
+}
+
+function guardEvent (e) {
+  // don't redirect with control keys
+  if (e.metaKey || e.altKey || e.ctrlKey || e.shiftKey) { return }
+  // don't redirect when preventDefault called
+  if (e.defaultPrevented) { return }
+  // don't redirect on right click
+  if (e.button !== undefined && e.button !== 0) { return }
+  // don't redirect if `target="_blank"`
+  if (e.currentTarget && e.currentTarget.getAttribute) {
+    var target = e.currentTarget.getAttribute('target');
+    if (/\b_blank\b/i.test(target)) { return }
+  }
+  // this may be a Weex event which doesn't have this method
+  if (e.preventDefault) {
+    e.preventDefault();
+  }
+  return true
+}
+
+function findAnchor (children) {
+  if (children) {
+    var child;
+    for (var i = 0; i < children.length; i++) {
+      child = children[i];
+      if (child.tag === 'a') {
+        return child
+      }
+      if (child.children && (child = findAnchor(child.children))) {
+        return child
+      }
+    }
+  }
+}
+
+var _Vue;
+
+function install (Vue) {
+  if (install.installed && _Vue === Vue) { return }
+  install.installed = true;
+
+  _Vue = Vue;
+
+  var isDef = function (v) { return v !== undefined; };
+
+  var registerInstance = function (vm, callVal) {
+    var i = vm.$options._parentVnode;
+    if (isDef(i) && isDef(i = i.data) && isDef(i = i.registerRouteInstance)) {
+      i(vm, callVal);
+    }
+  };
+
+  Vue.mixin({
+    beforeCreate: function beforeCreate () {
+      if (isDef(this.$options.router)) {
+        this._routerRoot = this;
+        this._router = this.$options.router;
+        this._router.init(this);
+        Vue.util.defineReactive(this, '_route', this._router.history.current);
+      } else {
+        this._routerRoot = (this.$parent && this.$parent._routerRoot) || this;
+      }
+      registerInstance(this, this);
+    },
+    destroyed: function destroyed () {
+      registerInstance(this);
+    }
+  });
+
+  Object.defineProperty(Vue.prototype, '$router', {
+    get: function get () { return this._routerRoot._router }
+  });
+
+  Object.defineProperty(Vue.prototype, '$route', {
+    get: function get () { return this._routerRoot._route }
+  });
+
+  Vue.component('RouterView', View);
+  Vue.component('RouterLink', Link);
+
+  var strats = Vue.config.optionMergeStrategies;
+  // use the same hook merging strategy for route hooks
+  strats.beforeRouteEnter = strats.beforeRouteLeave = strats.beforeRouteUpdate = strats.created;
+}
+
+/*  */
+
+var inBrowser = typeof window !== 'undefined';
+
+/*  */
+
+function resolvePath (
+  relative,
+  base,
+  append
+) {
+  var firstChar = relative.charAt(0);
+  if (firstChar === '/') {
+    return relative
+  }
+
+  if (firstChar === '?' || firstChar === '#') {
+    return base + relative
+  }
+
+  var stack = base.split('/');
+
+  // remove trailing segment if:
+  // - not appending
+  // - appending to trailing slash (last segment is empty)
+  if (!append || !stack[stack.length - 1]) {
+    stack.pop();
+  }
+
+  // resolve relative path
+  var segments = relative.replace(/^\//, '').split('/');
+  for (var i = 0; i < segments.length; i++) {
+    var segment = segments[i];
+    if (segment === '..') {
+      stack.pop();
+    } else if (segment !== '.') {
+      stack.push(segment);
+    }
+  }
+
+  // ensure leading slash
+  if (stack[0] !== '') {
+    stack.unshift('');
+  }
+
+  return stack.join('/')
+}
+
+function parsePath (path) {
+  var hash = '';
+  var query = '';
+
+  var hashIndex = path.indexOf('#');
+  if (hashIndex >= 0) {
+    hash = path.slice(hashIndex);
+    path = path.slice(0, hashIndex);
+  }
+
+  var queryIndex = path.indexOf('?');
+  if (queryIndex >= 0) {
+    query = path.slice(queryIndex + 1);
+    path = path.slice(0, queryIndex);
+  }
+
+  return {
+    path: path,
+    query: query,
+    hash: hash
+  }
+}
+
+function cleanPath (path) {
+  return path.replace(/\/\//g, '/')
+}
+
+var isarray = Array.isArray || function (arr) {
+  return Object.prototype.toString.call(arr) == '[object Array]';
+};
+
+/**
+ * Expose `pathToRegexp`.
+ */
+var pathToRegexp_1 = pathToRegexp;
+var parse_1 = parse;
+var compile_1 = compile;
+var tokensToFunction_1 = tokensToFunction;
+var tokensToRegExp_1 = tokensToRegExp;
+
+/**
+ * The main path matching regexp utility.
+ *
+ * @type {RegExp}
+ */
+var PATH_REGEXP = new RegExp([
+  // Match escaped characters that would otherwise appear in future matches.
+  // This allows the user to escape special characters that won't transform.
+  '(\\\\.)',
+  // Match Express-style parameters and un-named parameters with a prefix
+  // and optional suffixes. Matches appear as:
+  //
+  // "/:test(\\d+)?" => ["/", "test", "\d+", undefined, "?", undefined]
+  // "/route(\\d+)"  => [undefined, undefined, undefined, "\d+", undefined, undefined]
+  // "/*"            => ["/", undefined, undefined, undefined, undefined, "*"]
+  '([\\/.])?(?:(?:\\:(\\w+)(?:\\(((?:\\\\.|[^\\\\()])+)\\))?|\\(((?:\\\\.|[^\\\\()])+)\\))([+*?])?|(\\*))'
+].join('|'), 'g');
+
+/**
+ * Parse a string for the raw tokens.
+ *
+ * @param  {string}  str
+ * @param  {Object=} options
+ * @return {!Array}
+ */
+function parse (str, options) {
+  var tokens = [];
+  var key = 0;
+  var index = 0;
+  var path = '';
+  var defaultDelimiter = options && options.delimiter || '/';
+  var res;
+
+  while ((res = PATH_REGEXP.exec(str)) != null) {
+    var m = res[0];
+    var escaped = res[1];
+    var offset = res.index;
+    path += str.slice(index, offset);
+    index = offset + m.length;
+
+    // Ignore already escaped sequences.
+    if (escaped) {
+      path += escaped[1];
+      continue
+    }
+
+    var next = str[index];
+    var prefix = res[2];
+    var name = res[3];
+    var capture = res[4];
+    var group = res[5];
+    var modifier = res[6];
+    var asterisk = res[7];
+
+    // Push the current path onto the tokens.
+    if (path) {
+      tokens.push(path);
+      path = '';
+    }
+
+    var partial = prefix != null && next != null && next !== prefix;
+    var repeat = modifier === '+' || modifier === '*';
+    var optional = modifier === '?' || modifier === '*';
+    var delimiter = res[2] || defaultDelimiter;
+    var pattern = capture || group;
+
+    tokens.push({
+      name: name || key++,
+      prefix: prefix || '',
+      delimiter: delimiter,
+      optional: optional,
+      repeat: repeat,
+      partial: partial,
+      asterisk: !!asterisk,
+      pattern: pattern ? escapeGroup(pattern) : (asterisk ? '.*' : '[^' + escapeString(delimiter) + ']+?')
+    });
+  }
+
+  // Match any characters still remaining.
+  if (index < str.length) {
+    path += str.substr(index);
+  }
+
+  // If the path exists, push it onto the end.
+  if (path) {
+    tokens.push(path);
+  }
+
+  return tokens
+}
+
+/**
+ * Compile a string to a template function for the path.
+ *
+ * @param  {string}             str
+ * @param  {Object=}            options
+ * @return {!function(Object=, Object=)}
+ */
+function compile (str, options) {
+  return tokensToFunction(parse(str, options))
+}
+
+/**
+ * Prettier encoding of URI path segments.
+ *
+ * @param  {string}
+ * @return {string}
+ */
+function encodeURIComponentPretty (str) {
+  return encodeURI(str).replace(/[\/?#]/g, function (c) {
+    return '%' + c.charCodeAt(0).toString(16).toUpperCase()
+  })
+}
+
+/**
+ * Encode the asterisk parameter. Similar to `pretty`, but allows slashes.
+ *
+ * @param  {string}
+ * @return {string}
+ */
+function encodeAsterisk (str) {
+  return encodeURI(str).replace(/[?#]/g, function (c) {
+    return '%' + c.charCodeAt(0).toString(16).toUpperCase()
+  })
+}
+
+/**
+ * Expose a method for transforming tokens into the path function.
+ */
+function tokensToFunction (tokens) {
+  // Compile all the tokens into regexps.
+  var matches = new Array(tokens.length);
+
+  // Compile all the patterns before compilation.
+  for (var i = 0; i < tokens.length; i++) {
+    if (typeof tokens[i] === 'object') {
+      matches[i] = new RegExp('^(?:' + tokens[i].pattern + ')$');
+    }
+  }
+
+  return function (obj, opts) {
+    var path = '';
+    var data = obj || {};
+    var options = opts || {};
+    var encode = options.pretty ? encodeURIComponentPretty : encodeURIComponent;
+
+    for (var i = 0; i < tokens.length; i++) {
+      var token = tokens[i];
+
+      if (typeof token === 'string') {
+        path += token;
+
+        continue
+      }
+
+      var value = data[token.name];
+      var segment;
+
+      if (value == null) {
+        if (token.optional) {
+          // Prepend partial segment prefixes.
+          if (token.partial) {
+            path += token.prefix;
+          }
+
+          continue
+        } else {
+          throw new TypeError('Expected "' + token.name + '" to be defined')
+        }
+      }
+
+      if (isarray(value)) {
+        if (!token.repeat) {
+          throw new TypeError('Expected "' + token.name + '" to not repeat, but received `' + JSON.stringify(value) + '`')
+        }
+
+        if (value.length === 0) {
+          if (token.optional) {
+            continue
+          } else {
+            throw new TypeError('Expected "' + token.name + '" to not be empty')
+          }
+        }
+
+        for (var j = 0; j < value.length; j++) {
+          segment = encode(value[j]);
+
+          if (!matches[i].test(segment)) {
+            throw new TypeError('Expected all "' + token.name + '" to match "' + token.pattern + '", but received `' + JSON.stringify(segment) + '`')
+          }
+
+          path += (j === 0 ? token.prefix : token.delimiter) + segment;
+        }
+
+        continue
+      }
+
+      segment = token.asterisk ? encodeAsterisk(value) : encode(value);
+
+      if (!matches[i].test(segment)) {
+        throw new TypeError('Expected "' + token.name + '" to match "' + token.pattern + '", but received "' + segment + '"')
+      }
+
+      path += token.prefix + segment;
+    }
+
+    return path
+  }
+}
+
+/**
+ * Escape a regular expression string.
+ *
+ * @param  {string} str
+ * @return {string}
+ */
+function escapeString (str) {
+  return str.replace(/([.+*?=^!:${}()[\]|\/\\])/g, '\\$1')
+}
+
+/**
+ * Escape the capturing group by escaping special characters and meaning.
+ *
+ * @param  {string} group
+ * @return {string}
+ */
+function escapeGroup (group) {
+  return group.replace(/([=!:$\/()])/g, '\\$1')
+}
+
+/**
+ * Attach the keys as a property of the regexp.
+ *
+ * @param  {!RegExp} re
+ * @param  {Array}   keys
+ * @return {!RegExp}
+ */
+function attachKeys (re, keys) {
+  re.keys = keys;
+  return re
+}
+
+/**
+ * Get the flags for a regexp from the options.
+ *
+ * @param  {Object} options
+ * @return {string}
+ */
+function flags (options) {
+  return options.sensitive ? '' : 'i'
+}
+
+/**
+ * Pull out keys from a regexp.
+ *
+ * @param  {!RegExp} path
+ * @param  {!Array}  keys
+ * @return {!RegExp}
+ */
+function regexpToRegexp (path, keys) {
+  // Use a negative lookahead to match only capturing groups.
+  var groups = path.source.match(/\((?!\?)/g);
+
+  if (groups) {
+    for (var i = 0; i < groups.length; i++) {
+      keys.push({
+        name: i,
+        prefix: null,
+        delimiter: null,
+        optional: false,
+        repeat: false,
+        partial: false,
+        asterisk: false,
+        pattern: null
+      });
+    }
+  }
+
+  return attachKeys(path, keys)
+}
+
+/**
+ * Transform an array into a regexp.
+ *
+ * @param  {!Array}  path
+ * @param  {Array}   keys
+ * @param  {!Object} options
+ * @return {!RegExp}
+ */
+function arrayToRegexp (path, keys, options) {
+  var parts = [];
+
+  for (var i = 0; i < path.length; i++) {
+    parts.push(pathToRegexp(path[i], keys, options).source);
+  }
+
+  var regexp = new RegExp('(?:' + parts.join('|') + ')', flags(options));
+
+  return attachKeys(regexp, keys)
+}
+
+/**
+ * Create a path regexp from string input.
+ *
+ * @param  {string}  path
+ * @param  {!Array}  keys
+ * @param  {!Object} options
+ * @return {!RegExp}
+ */
+function stringToRegexp (path, keys, options) {
+  return tokensToRegExp(parse(path, options), keys, options)
+}
+
+/**
+ * Expose a function for taking tokens and returning a RegExp.
+ *
+ * @param  {!Array}          tokens
+ * @param  {(Array|Object)=} keys
+ * @param  {Object=}         options
+ * @return {!RegExp}
+ */
+function tokensToRegExp (tokens, keys, options) {
+  if (!isarray(keys)) {
+    options = /** @type {!Object} */ (keys || options);
+    keys = [];
+  }
+
+  options = options || {};
+
+  var strict = options.strict;
+  var end = options.end !== false;
+  var route = '';
+
+  // Iterate over the tokens and create our regexp string.
+  for (var i = 0; i < tokens.length; i++) {
+    var token = tokens[i];
+
+    if (typeof token === 'string') {
+      route += escapeString(token);
+    } else {
+      var prefix = escapeString(token.prefix);
+      var capture = '(?:' + token.pattern + ')';
+
+      keys.push(token);
+
+      if (token.repeat) {
+        capture += '(?:' + prefix + capture + ')*';
+      }
+
+      if (token.optional) {
+        if (!token.partial) {
+          capture = '(?:' + prefix + '(' + capture + '))?';
+        } else {
+          capture = prefix + '(' + capture + ')?';
+        }
+      } else {
+        capture = prefix + '(' + capture + ')';
+      }
+
+      route += capture;
+    }
+  }
+
+  var delimiter = escapeString(options.delimiter || '/');
+  var endsWithDelimiter = route.slice(-delimiter.length) === delimiter;
+
+  // In non-strict mode we allow a slash at the end of match. If the path to
+  // match already ends with a slash, we remove it for consistency. The slash
+  // is valid at the end of a path match, not in the middle. This is important
+  // in non-ending mode, where "/test/" shouldn't match "/test//route".
+  if (!strict) {
+    route = (endsWithDelimiter ? route.slice(0, -delimiter.length) : route) + '(?:' + delimiter + '(?=$))?';
+  }
+
+  if (end) {
+    route += '$';
+  } else {
+    // In non-ending mode, we need the capturing groups to match as much as
+    // possible by using a positive lookahead to the end or next path segment.
+    route += strict && endsWithDelimiter ? '' : '(?=' + delimiter + '|$)';
+  }
+
+  return attachKeys(new RegExp('^' + route, flags(options)), keys)
+}
+
+/**
+ * Normalize the given path string, returning a regular expression.
+ *
+ * An empty array can be passed in for the keys, which will hold the
+ * placeholder key descriptions. For example, using `/user/:id`, `keys` will
+ * contain `[{ name: 'id', delimiter: '/', optional: false, repeat: false }]`.
+ *
+ * @param  {(string|RegExp|Array)} path
+ * @param  {(Array|Object)=}       keys
+ * @param  {Object=}               options
+ * @return {!RegExp}
+ */
+function pathToRegexp (path, keys, options) {
+  if (!isarray(keys)) {
+    options = /** @type {!Object} */ (keys || options);
+    keys = [];
+  }
+
+  options = options || {};
+
+  if (path instanceof RegExp) {
+    return regexpToRegexp(path, /** @type {!Array} */ (keys))
+  }
+
+  if (isarray(path)) {
+    return arrayToRegexp(/** @type {!Array} */ (path), /** @type {!Array} */ (keys), options)
+  }
+
+  return stringToRegexp(/** @type {string} */ (path), /** @type {!Array} */ (keys), options)
+}
+pathToRegexp_1.parse = parse_1;
+pathToRegexp_1.compile = compile_1;
+pathToRegexp_1.tokensToFunction = tokensToFunction_1;
+pathToRegexp_1.tokensToRegExp = tokensToRegExp_1;
+
+/*  */
+
+// $flow-disable-line
+var regexpCompileCache = Object.create(null);
+
+function fillParams (
+  path,
+  params,
+  routeMsg
+) {
+  try {
+    var filler =
+      regexpCompileCache[path] ||
+      (regexpCompileCache[path] = pathToRegexp_1.compile(path));
+    return filler(params || {}, { pretty: true })
+  } catch (e) {
+    if (process.env.NODE_ENV !== 'production') {
+      warn(false, ("missing param for " + routeMsg + ": " + (e.message)));
+    }
+    return ''
+  }
+}
+
+/*  */
+
+function createRouteMap (
+  routes,
+  oldPathList,
+  oldPathMap,
+  oldNameMap
+) {
+  // the path list is used to control path matching priority
+  var pathList = oldPathList || [];
+  // $flow-disable-line
+  var pathMap = oldPathMap || Object.create(null);
+  // $flow-disable-line
+  var nameMap = oldNameMap || Object.create(null);
+
+  routes.forEach(function (route) {
+    addRouteRecord(pathList, pathMap, nameMap, route);
+  });
+
+  // ensure wildcard routes are always at the end
+  for (var i = 0, l = pathList.length; i < l; i++) {
+    if (pathList[i] === '*') {
+      pathList.push(pathList.splice(i, 1)[0]);
+      l--;
+      i--;
+    }
+  }
+
+  return {
+    pathList: pathList,
+    pathMap: pathMap,
+    nameMap: nameMap
+  }
+}
+
+function addRouteRecord (
+  pathList,
+  pathMap,
+  nameMap,
+  route,
+  parent,
+  matchAs
+) {
+  var path = route.path;
+  var name = route.name;
+  if (process.env.NODE_ENV !== 'production') {
+    assert(path != null, "\"path\" is required in a route configuration.");
+    assert(
+      typeof route.component !== 'string',
+      "route config \"component\" for path: " + (String(path || name)) + " cannot be a " +
+      "string id. Use an actual component instead."
+    );
+  }
+
+  var pathToRegexpOptions = route.pathToRegexpOptions || {};
+  var normalizedPath = normalizePath(
+    path,
+    parent,
+    pathToRegexpOptions.strict
+  );
+
+  if (typeof route.caseSensitive === 'boolean') {
+    pathToRegexpOptions.sensitive = route.caseSensitive;
+  }
+
+  var record = {
+    path: normalizedPath,
+    regex: compileRouteRegex(normalizedPath, pathToRegexpOptions),
+    components: route.components || { default: route.component },
+    instances: {},
+    name: name,
+    parent: parent,
+    matchAs: matchAs,
+    redirect: route.redirect,
+    beforeEnter: route.beforeEnter,
+    meta: route.meta || {},
+    props: route.props == null
+      ? {}
+      : route.components
+        ? route.props
+        : { default: route.props }
+  };
+
+  if (route.children) {
+    // Warn if route is named, does not redirect and has a default child route.
+    // If users navigate to this route by name, the default child will
+    // not be rendered (GH Issue #629)
+    if (process.env.NODE_ENV !== 'production') {
+      if (route.name && !route.redirect && route.children.some(function (child) { return /^\/?$/.test(child.path); })) {
+        warn(
+          false,
+          "Named Route '" + (route.name) + "' has a default child route. " +
+          "When navigating to this named route (:to=\"{name: '" + (route.name) + "'\"), " +
+          "the default child route will not be rendered. Remove the name from " +
+          "this route and use the name of the default child route for named " +
+          "links instead."
+        );
+      }
+    }
+    route.children.forEach(function (child) {
+      var childMatchAs = matchAs
+        ? cleanPath((matchAs + "/" + (child.path)))
+        : undefined;
+      addRouteRecord(pathList, pathMap, nameMap, child, record, childMatchAs);
+    });
+  }
+
+  if (route.alias !== undefined) {
+    var aliases = Array.isArray(route.alias)
+      ? route.alias
+      : [route.alias];
+
+    aliases.forEach(function (alias) {
+      var aliasRoute = {
+        path: alias,
+        children: route.children
+      };
+      addRouteRecord(
+        pathList,
+        pathMap,
+        nameMap,
+        aliasRoute,
+        parent,
+        record.path || '/' // matchAs
+      );
+    });
+  }
+
+  if (!pathMap[record.path]) {
+    pathList.push(record.path);
+    pathMap[record.path] = record;
+  }
+
+  if (name) {
+    if (!nameMap[name]) {
+      nameMap[name] = record;
+    } else if (process.env.NODE_ENV !== 'production' && !matchAs) {
+      warn(
+        false,
+        "Duplicate named routes definition: " +
+        "{ name: \"" + name + "\", path: \"" + (record.path) + "\" }"
+      );
+    }
+  }
+}
+
+function compileRouteRegex (path, pathToRegexpOptions) {
+  var regex = pathToRegexp_1(path, [], pathToRegexpOptions);
+  if (process.env.NODE_ENV !== 'production') {
+    var keys = Object.create(null);
+    regex.keys.forEach(function (key) {
+      warn(!keys[key.name], ("Duplicate param keys in route with path: \"" + path + "\""));
+      keys[key.name] = true;
+    });
+  }
+  return regex
+}
+
+function normalizePath (path, parent, strict) {
+  if (!strict) { path = path.replace(/\/$/, ''); }
+  if (path[0] === '/') { return path }
+  if (parent == null) { return path }
+  return cleanPath(((parent.path) + "/" + path))
+}
+
+/*  */
+
+function normalizeLocation (
+  raw,
+  current,
+  append,
+  router
+) {
+  var next = typeof raw === 'string' ? { path: raw } : raw;
+  // named target
+  if (next.name || next._normalized) {
+    return next
+  }
+
+  // relative params
+  if (!next.path && next.params && current) {
+    next = extend({}, next);
+    next._normalized = true;
+    var params = extend(extend({}, current.params), next.params);
+    if (current.name) {
+      next.name = current.name;
+      next.params = params;
+    } else if (current.matched.length) {
+      var rawPath = current.matched[current.matched.length - 1].path;
+      next.path = fillParams(rawPath, params, ("path " + (current.path)));
+    } else if (process.env.NODE_ENV !== 'production') {
+      warn(false, "relative params navigation requires a current route.");
+    }
+    return next
+  }
+
+  var parsedPath = parsePath(next.path || '');
+  var basePath = (current && current.path) || '/';
+  var path = parsedPath.path
+    ? resolvePath(parsedPath.path, basePath, append || next.append)
+    : basePath;
+
+  var query = resolveQuery(
+    parsedPath.query,
+    next.query,
+    router && router.options.parseQuery
+  );
+
+  var hash = next.hash || parsedPath.hash;
+  if (hash && hash.charAt(0) !== '#') {
+    hash = "#" + hash;
+  }
+
+  return {
+    _normalized: true,
+    path: path,
+    query: query,
+    hash: hash
+  }
+}
+
+/*  */
+
+
+
+function createMatcher (
+  routes,
+  router
+) {
+  var ref = createRouteMap(routes);
+  var pathList = ref.pathList;
+  var pathMap = ref.pathMap;
+  var nameMap = ref.nameMap;
+
+  function addRoutes (routes) {
+    createRouteMap(routes, pathList, pathMap, nameMap);
+  }
+
+  function match (
+    raw,
+    currentRoute,
+    redirectedFrom
+  ) {
+    var location = normalizeLocation(raw, currentRoute, false, router);
+    var name = location.name;
+
+    if (name) {
+      var record = nameMap[name];
+      if (process.env.NODE_ENV !== 'production') {
+        warn(record, ("Route with name '" + name + "' does not exist"));
+      }
+      if (!record) { return _createRoute(null, location) }
+      var paramNames = record.regex.keys
+        .filter(function (key) { return !key.optional; })
+        .map(function (key) { return key.name; });
+
+      if (typeof location.params !== 'object') {
+        location.params = {};
+      }
+
+      if (currentRoute && typeof currentRoute.params === 'object') {
+        for (var key in currentRoute.params) {
+          if (!(key in location.params) && paramNames.indexOf(key) > -1) {
+            location.params[key] = currentRoute.params[key];
+          }
+        }
+      }
+
+      if (record) {
+        location.path = fillParams(record.path, location.params, ("named route \"" + name + "\""));
+        return _createRoute(record, location, redirectedFrom)
+      }
+    } else if (location.path) {
+      location.params = {};
+      for (var i = 0; i < pathList.length; i++) {
+        var path = pathList[i];
+        var record$1 = pathMap[path];
+        if (matchRoute(record$1.regex, location.path, location.params)) {
+          return _createRoute(record$1, location, redirectedFrom)
+        }
+      }
+    }
+    // no match
+    return _createRoute(null, location)
+  }
+
+  function redirect (
+    record,
+    location
+  ) {
+    var originalRedirect = record.redirect;
+    var redirect = typeof originalRedirect === 'function'
+      ? originalRedirect(createRoute(record, location, null, router))
+      : originalRedirect;
+
+    if (typeof redirect === 'string') {
+      redirect = { path: redirect };
+    }
+
+    if (!redirect || typeof redirect !== 'object') {
+      if (process.env.NODE_ENV !== 'production') {
+        warn(
+          false, ("invalid redirect option: " + (JSON.stringify(redirect)))
+        );
+      }
+      return _createRoute(null, location)
+    }
+
+    var re = redirect;
+    var name = re.name;
+    var path = re.path;
+    var query = location.query;
+    var hash = location.hash;
+    var params = location.params;
+    query = re.hasOwnProperty('query') ? re.query : query;
+    hash = re.hasOwnProperty('hash') ? re.hash : hash;
+    params = re.hasOwnProperty('params') ? re.params : params;
+
+    if (name) {
+      // resolved named direct
+      var targetRecord = nameMap[name];
+      if (process.env.NODE_ENV !== 'production') {
+        assert(targetRecord, ("redirect failed: named route \"" + name + "\" not found."));
+      }
+      return match({
+        _normalized: true,
+        name: name,
+        query: query,
+        hash: hash,
+        params: params
+      }, undefined, location)
+    } else if (path) {
+      // 1. resolve relative redirect
+      var rawPath = resolveRecordPath(path, record);
+      // 2. resolve params
+      var resolvedPath = fillParams(rawPath, params, ("redirect route with path \"" + rawPath + "\""));
+      // 3. rematch with existing query and hash
+      return match({
+        _normalized: true,
+        path: resolvedPath,
+        query: query,
+        hash: hash
+      }, undefined, location)
+    } else {
+      if (process.env.NODE_ENV !== 'production') {
+        warn(false, ("invalid redirect option: " + (JSON.stringify(redirect))));
+      }
+      return _createRoute(null, location)
+    }
+  }
+
+  function alias (
+    record,
+    location,
+    matchAs
+  ) {
+    var aliasedPath = fillParams(matchAs, location.params, ("aliased route with path \"" + matchAs + "\""));
+    var aliasedMatch = match({
+      _normalized: true,
+      path: aliasedPath
+    });
+    if (aliasedMatch) {
+      var matched = aliasedMatch.matched;
+      var aliasedRecord = matched[matched.length - 1];
+      location.params = aliasedMatch.params;
+      return _createRoute(aliasedRecord, location)
+    }
+    return _createRoute(null, location)
+  }
+
+  function _createRoute (
+    record,
+    location,
+    redirectedFrom
+  ) {
+    if (record && record.redirect) {
+      return redirect(record, redirectedFrom || location)
+    }
+    if (record && record.matchAs) {
+      return alias(record, location, record.matchAs)
+    }
+    return createRoute(record, location, redirectedFrom, router)
+  }
+
+  return {
+    match: match,
+    addRoutes: addRoutes
+  }
+}
+
+function matchRoute (
+  regex,
+  path,
+  params
+) {
+  var m = path.match(regex);
+
+  if (!m) {
+    return false
+  } else if (!params) {
+    return true
+  }
+
+  for (var i = 1, len = m.length; i < len; ++i) {
+    var key = regex.keys[i - 1];
+    var val = typeof m[i] === 'string' ? decodeURIComponent(m[i]) : m[i];
+    if (key) {
+      // Fix #1994: using * with props: true generates a param named 0
+      params[key.name || 'pathMatch'] = val;
+    }
+  }
+
+  return true
+}
+
+function resolveRecordPath (path, record) {
+  return resolvePath(path, record.parent ? record.parent.path : '/', true)
+}
+
+/*  */
+
+var positionStore = Object.create(null);
+
+function setupScroll () {
+  // Fix for #1585 for Firefox
+  // Fix for #2195 Add optional third attribute to workaround a bug in safari https://bugs.webkit.org/show_bug.cgi?id=182678
+  window.history.replaceState({ key: getStateKey() }, '', window.location.href.replace(window.location.origin, ''));
+  window.addEventListener('popstate', function (e) {
+    saveScrollPosition();
+    if (e.state && e.state.key) {
+      setStateKey(e.state.key);
+    }
+  });
+}
+
+function handleScroll (
+  router,
+  to,
+  from,
+  isPop
+) {
+  if (!router.app) {
+    return
+  }
+
+  var behavior = router.options.scrollBehavior;
+  if (!behavior) {
+    return
+  }
+
+  if (process.env.NODE_ENV !== 'production') {
+    assert(typeof behavior === 'function', "scrollBehavior must be a function");
+  }
+
+  // wait until re-render finishes before scrolling
+  router.app.$nextTick(function () {
+    var position = getScrollPosition();
+    var shouldScroll = behavior.call(router, to, from, isPop ? position : null);
+
+    if (!shouldScroll) {
+      return
+    }
+
+    if (typeof shouldScroll.then === 'function') {
+      shouldScroll.then(function (shouldScroll) {
+        scrollToPosition((shouldScroll), position);
+      }).catch(function (err) {
+        if (process.env.NODE_ENV !== 'production') {
+          assert(false, err.toString());
+        }
+      });
+    } else {
+      scrollToPosition(shouldScroll, position);
+    }
+  });
+}
+
+function saveScrollPosition () {
+  var key = getStateKey();
+  if (key) {
+    positionStore[key] = {
+      x: window.pageXOffset,
+      y: window.pageYOffset
+    };
+  }
+}
+
+function getScrollPosition () {
+  var key = getStateKey();
+  if (key) {
+    return positionStore[key]
+  }
+}
+
+function getElementPosition (el, offset) {
+  var docEl = document.documentElement;
+  var docRect = docEl.getBoundingClientRect();
+  var elRect = el.getBoundingClientRect();
+  return {
+    x: elRect.left - docRect.left - offset.x,
+    y: elRect.top - docRect.top - offset.y
+  }
+}
+
+function isValidPosition (obj) {
+  return isNumber(obj.x) || isNumber(obj.y)
+}
+
+function normalizePosition (obj) {
+  return {
+    x: isNumber(obj.x) ? obj.x : window.pageXOffset,
+    y: isNumber(obj.y) ? obj.y : window.pageYOffset
+  }
+}
+
+function normalizeOffset (obj) {
+  return {
+    x: isNumber(obj.x) ? obj.x : 0,
+    y: isNumber(obj.y) ? obj.y : 0
+  }
+}
+
+function isNumber (v) {
+  return typeof v === 'number'
+}
+
+function scrollToPosition (shouldScroll, position) {
+  var isObject = typeof shouldScroll === 'object';
+  if (isObject && typeof shouldScroll.selector === 'string') {
+    var el = document.querySelector(shouldScroll.selector);
+    if (el) {
+      var offset = shouldScroll.offset && typeof shouldScroll.offset === 'object' ? shouldScroll.offset : {};
+      offset = normalizeOffset(offset);
+      position = getElementPosition(el, offset);
+    } else if (isValidPosition(shouldScroll)) {
+      position = normalizePosition(shouldScroll);
+    }
+  } else if (isObject && isValidPosition(shouldScroll)) {
+    position = normalizePosition(shouldScroll);
+  }
+
+  if (position) {
+    window.scrollTo(position.x, position.y);
+  }
+}
+
+/*  */
+
+var supportsPushState = inBrowser && (function () {
+  var ua = window.navigator.userAgent;
+
+  if (
+    (ua.indexOf('Android 2.') !== -1 || ua.indexOf('Android 4.0') !== -1) &&
+    ua.indexOf('Mobile Safari') !== -1 &&
+    ua.indexOf('Chrome') === -1 &&
+    ua.indexOf('Windows Phone') === -1
+  ) {
+    return false
+  }
+
+  return window.history && 'pushState' in window.history
+})();
+
+// use User Timing api (if present) for more accurate key precision
+var Time = inBrowser && window.performance && window.performance.now
+  ? window.performance
+  : Date;
+
+var _key = genKey();
+
+function genKey () {
+  return Time.now().toFixed(3)
+}
+
+function getStateKey () {
+  return _key
+}
+
+function setStateKey (key) {
+  _key = key;
+}
+
+function pushState (url, replace) {
+  saveScrollPosition();
+  // try...catch the pushState call to get around Safari
+  // DOM Exception 18 where it limits to 100 pushState calls
+  var history = window.history;
+  try {
+    if (replace) {
+      history.replaceState({ key: _key }, '', url);
+    } else {
+      _key = genKey();
+      history.pushState({ key: _key }, '', url);
+    }
+  } catch (e) {
+    window.location[replace ? 'replace' : 'assign'](url);
+  }
+}
+
+function replaceState (url) {
+  pushState(url, true);
+}
+
+/*  */
+
+function runQueue (queue, fn, cb) {
+  var step = function (index) {
+    if (index >= queue.length) {
+      cb();
+    } else {
+      if (queue[index]) {
+        fn(queue[index], function () {
+          step(index + 1);
+        });
+      } else {
+        step(index + 1);
+      }
+    }
+  };
+  step(0);
+}
+
+/*  */
+
+function resolveAsyncComponents (matched) {
+  return function (to, from, next) {
+    var hasAsync = false;
+    var pending = 0;
+    var error = null;
+
+    flatMapComponents(matched, function (def, _, match, key) {
+      // if it's a function and doesn't have cid attached,
+      // assume it's an async component resolve function.
+      // we are not using Vue's default async resolving mechanism because
+      // we want to halt the navigation until the incoming component has been
+      // resolved.
+      if (typeof def === 'function' && def.cid === undefined) {
+        hasAsync = true;
+        pending++;
+
+        var resolve = once(function (resolvedDef) {
+          if (isESModule(resolvedDef)) {
+            resolvedDef = resolvedDef.default;
+          }
+          // save resolved on async factory in case it's used elsewhere
+          def.resolved = typeof resolvedDef === 'function'
+            ? resolvedDef
+            : _Vue.extend(resolvedDef);
+          match.components[key] = resolvedDef;
+          pending--;
+          if (pending <= 0) {
+            next();
+          }
+        });
+
+        var reject = once(function (reason) {
+          var msg = "Failed to resolve async component " + key + ": " + reason;
+          process.env.NODE_ENV !== 'production' && warn(false, msg);
+          if (!error) {
+            error = isError(reason)
+              ? reason
+              : new Error(msg);
+            next(error);
+          }
+        });
+
+        var res;
+        try {
+          res = def(resolve, reject);
+        } catch (e) {
+          reject(e);
+        }
+        if (res) {
+          if (typeof res.then === 'function') {
+            res.then(resolve, reject);
+          } else {
+            // new syntax in Vue 2.3
+            var comp = res.component;
+            if (comp && typeof comp.then === 'function') {
+              comp.then(resolve, reject);
+            }
+          }
+        }
+      }
+    });
+
+    if (!hasAsync) { next(); }
+  }
+}
+
+function flatMapComponents (
+  matched,
+  fn
+) {
+  return flatten(matched.map(function (m) {
+    return Object.keys(m.components).map(function (key) { return fn(
+      m.components[key],
+      m.instances[key],
+      m, key
+    ); })
+  }))
+}
+
+function flatten (arr) {
+  return Array.prototype.concat.apply([], arr)
+}
+
+var hasSymbol =
+  typeof Symbol === 'function' &&
+  typeof Symbol.toStringTag === 'symbol';
+
+function isESModule (obj) {
+  return obj.__esModule || (hasSymbol && obj[Symbol.toStringTag] === 'Module')
+}
+
+// in Webpack 2, require.ensure now also returns a Promise
+// so the resolve/reject functions may get called an extra time
+// if the user uses an arrow function shorthand that happens to
+// return that Promise.
+function once (fn) {
+  var called = false;
+  return function () {
+    var args = [], len = arguments.length;
+    while ( len-- ) args[ len ] = arguments[ len ];
+
+    if (called) { return }
+    called = true;
+    return fn.apply(this, args)
+  }
+}
+
+/*  */
+
+var History = function History (router, base) {
+  this.router = router;
+  this.base = normalizeBase(base);
+  // start with a route object that stands for "nowhere"
+  this.current = START;
+  this.pending = null;
+  this.ready = false;
+  this.readyCbs = [];
+  this.readyErrorCbs = [];
+  this.errorCbs = [];
+};
+
+History.prototype.listen = function listen (cb) {
+  this.cb = cb;
+};
+
+History.prototype.onReady = function onReady (cb, errorCb) {
+  if (this.ready) {
+    cb();
+  } else {
+    this.readyCbs.push(cb);
+    if (errorCb) {
+      this.readyErrorCbs.push(errorCb);
+    }
+  }
+};
+
+History.prototype.onError = function onError (errorCb) {
+  this.errorCbs.push(errorCb);
+};
+
+History.prototype.transitionTo = function transitionTo (location, onComplete, onAbort) {
+    var this$1 = this;
+
+  var route = this.router.match(location, this.current);
+  this.confirmTransition(route, function () {
+    this$1.updateRoute(route);
+    onComplete && onComplete(route);
+    this$1.ensureURL();
+
+    // fire ready cbs once
+    if (!this$1.ready) {
+      this$1.ready = true;
+      this$1.readyCbs.forEach(function (cb) { cb(route); });
+    }
+  }, function (err) {
+    if (onAbort) {
+      onAbort(err);
+    }
+    if (err && !this$1.ready) {
+      this$1.ready = true;
+      this$1.readyErrorCbs.forEach(function (cb) { cb(err); });
+    }
+  });
+};
+
+History.prototype.confirmTransition = function confirmTransition (route, onComplete, onAbort) {
+    var this$1 = this;
+
+  var current = this.current;
+  var abort = function (err) {
+    if (isError(err)) {
+      if (this$1.errorCbs.length) {
+        this$1.errorCbs.forEach(function (cb) { cb(err); });
+      } else {
+        warn(false, 'uncaught error during route navigation:');
+        console.error(err);
+      }
+    }
+    onAbort && onAbort(err);
+  };
+  if (
+    isSameRoute(route, current) &&
+    // in the case the route map has been dynamically appended to
+    route.matched.length === current.matched.length
+  ) {
+    this.ensureURL();
+    return abort()
+  }
+
+  var ref = resolveQueue(this.current.matched, route.matched);
+    var updated = ref.updated;
+    var deactivated = ref.deactivated;
+    var activated = ref.activated;
+
+  var queue = [].concat(
+    // in-component leave guards
+    extractLeaveGuards(deactivated),
+    // global before hooks
+    this.router.beforeHooks,
+    // in-component update hooks
+    extractUpdateHooks(updated),
+    // in-config enter guards
+    activated.map(function (m) { return m.beforeEnter; }),
+    // async components
+    resolveAsyncComponents(activated)
+  );
+
+  this.pending = route;
+  var iterator = function (hook, next) {
+    if (this$1.pending !== route) {
+      return abort()
+    }
+    try {
+      hook(route, current, function (to) {
+        if (to === false || isError(to)) {
+          // next(false) -> abort navigation, ensure current URL
+          this$1.ensureURL(true);
+          abort(to);
+        } else if (
+          typeof to === 'string' ||
+          (typeof to === 'object' && (
+            typeof to.path === 'string' ||
+            typeof to.name === 'string'
+          ))
+        ) {
+          // next('/') or next({ path: '/' }) -> redirect
+          abort();
+          if (typeof to === 'object' && to.replace) {
+            this$1.replace(to);
+          } else {
+            this$1.push(to);
+          }
+        } else {
+          // confirm transition and pass on the value
+          next(to);
+        }
+      });
+    } catch (e) {
+      abort(e);
+    }
+  };
+
+  runQueue(queue, iterator, function () {
+    var postEnterCbs = [];
+    var isValid = function () { return this$1.current === route; };
+    // wait until async components are resolved before
+    // extracting in-component enter guards
+    var enterGuards = extractEnterGuards(activated, postEnterCbs, isValid);
+    var queue = enterGuards.concat(this$1.router.resolveHooks);
+    runQueue(queue, iterator, function () {
+      if (this$1.pending !== route) {
+        return abort()
+      }
+      this$1.pending = null;
+      onComplete(route);
+      if (this$1.router.app) {
+        this$1.router.app.$nextTick(function () {
+          postEnterCbs.forEach(function (cb) { cb(); });
+        });
+      }
+    });
+  });
+};
+
+History.prototype.updateRoute = function updateRoute (route) {
+  var prev = this.current;
+  this.current = route;
+  this.cb && this.cb(route);
+  this.router.afterHooks.forEach(function (hook) {
+    hook && hook(route, prev);
+  });
+};
+
+function normalizeBase (base) {
+  if (!base) {
+    if (inBrowser) {
+      // respect <base> tag
+      var baseEl = document.querySelector('base');
+      base = (baseEl && baseEl.getAttribute('href')) || '/';
+      // strip full URL origin
+      base = base.replace(/^https?:\/\/[^\/]+/, '');
+    } else {
+      base = '/';
+    }
+  }
+  // make sure there's the starting slash
+  if (base.charAt(0) !== '/') {
+    base = '/' + base;
+  }
+  // remove trailing slash
+  return base.replace(/\/$/, '')
+}
+
+function resolveQueue (
+  current,
+  next
+) {
+  var i;
+  var max = Math.max(current.length, next.length);
+  for (i = 0; i < max; i++) {
+    if (current[i] !== next[i]) {
+      break
+    }
+  }
+  return {
+    updated: next.slice(0, i),
+    activated: next.slice(i),
+    deactivated: current.slice(i)
+  }
+}
+
+function extractGuards (
+  records,
+  name,
+  bind,
+  reverse
+) {
+  var guards = flatMapComponents(records, function (def, instance, match, key) {
+    var guard = extractGuard(def, name);
+    if (guard) {
+      return Array.isArray(guard)
+        ? guard.map(function (guard) { return bind(guard, instance, match, key); })
+        : bind(guard, instance, match, key)
+    }
+  });
+  return flatten(reverse ? guards.reverse() : guards)
+}
+
+function extractGuard (
+  def,
+  key
+) {
+  if (typeof def !== 'function') {
+    // extend now so that global mixins are applied.
+    def = _Vue.extend(def);
+  }
+  return def.options[key]
+}
+
+function extractLeaveGuards (deactivated) {
+  return extractGuards(deactivated, 'beforeRouteLeave', bindGuard, true)
+}
+
+function extractUpdateHooks (updated) {
+  return extractGuards(updated, 'beforeRouteUpdate', bindGuard)
+}
+
+function bindGuard (guard, instance) {
+  if (instance) {
+    return function boundRouteGuard () {
+      return guard.apply(instance, arguments)
+    }
+  }
+}
+
+function extractEnterGuards (
+  activated,
+  cbs,
+  isValid
+) {
+  return extractGuards(activated, 'beforeRouteEnter', function (guard, _, match, key) {
+    return bindEnterGuard(guard, match, key, cbs, isValid)
+  })
+}
+
+function bindEnterGuard (
+  guard,
+  match,
+  key,
+  cbs,
+  isValid
+) {
+  return function routeEnterGuard (to, from, next) {
+    return guard(to, from, function (cb) {
+      next(cb);
+      if (typeof cb === 'function') {
+        cbs.push(function () {
+          // #750
+          // if a router-view is wrapped with an out-in transition,
+          // the instance may not have been registered at this time.
+          // we will need to poll for registration until current route
+          // is no longer valid.
+          poll(cb, match.instances, key, isValid);
+        });
+      }
+    })
+  }
+}
+
+function poll (
+  cb, // somehow flow cannot infer this is a function
+  instances,
+  key,
+  isValid
+) {
+  if (
+    instances[key] &&
+    !instances[key]._isBeingDestroyed // do not reuse being destroyed instance
+  ) {
+    cb(instances[key]);
+  } else if (isValid()) {
+    setTimeout(function () {
+      poll(cb, instances, key, isValid);
+    }, 16);
+  }
+}
+
+/*  */
+
+var HTML5History = (function (History$$1) {
+  function HTML5History (router, base) {
+    var this$1 = this;
+
+    History$$1.call(this, router, base);
+
+    var expectScroll = router.options.scrollBehavior;
+    var supportsScroll = supportsPushState && expectScroll;
+
+    if (supportsScroll) {
+      setupScroll();
+    }
+
+    var initLocation = getLocation(this.base);
+    window.addEventListener('popstate', function (e) {
+      var current = this$1.current;
+
+      // Avoiding first `popstate` event dispatched in some browsers but first
+      // history route not updated since async guard at the same time.
+      var location = getLocation(this$1.base);
+      if (this$1.current === START && location === initLocation) {
+        return
+      }
+
+      this$1.transitionTo(location, function (route) {
+        if (supportsScroll) {
+          handleScroll(router, route, current, true);
+        }
+      });
+    });
+  }
+
+  if ( History$$1 ) HTML5History.__proto__ = History$$1;
+  HTML5History.prototype = Object.create( History$$1 && History$$1.prototype );
+  HTML5History.prototype.constructor = HTML5History;
+
+  HTML5History.prototype.go = function go (n) {
+    window.history.go(n);
+  };
+
+  HTML5History.prototype.push = function push (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    var ref = this;
+    var fromRoute = ref.current;
+    this.transitionTo(location, function (route) {
+      pushState(cleanPath(this$1.base + route.fullPath));
+      handleScroll(this$1.router, route, fromRoute, false);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  HTML5History.prototype.replace = function replace (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    var ref = this;
+    var fromRoute = ref.current;
+    this.transitionTo(location, function (route) {
+      replaceState(cleanPath(this$1.base + route.fullPath));
+      handleScroll(this$1.router, route, fromRoute, false);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  HTML5History.prototype.ensureURL = function ensureURL (push) {
+    if (getLocation(this.base) !== this.current.fullPath) {
+      var current = cleanPath(this.base + this.current.fullPath);
+      push ? pushState(current) : replaceState(current);
+    }
+  };
+
+  HTML5History.prototype.getCurrentLocation = function getCurrentLocation () {
+    return getLocation(this.base)
+  };
+
+  return HTML5History;
+}(History));
+
+function getLocation (base) {
+  var path = decodeURI(window.location.pathname);
+  if (base && path.indexOf(base) === 0) {
+    path = path.slice(base.length);
+  }
+  return (path || '/') + window.location.search + window.location.hash
+}
+
+/*  */
+
+var HashHistory = (function (History$$1) {
+  function HashHistory (router, base, fallback) {
+    History$$1.call(this, router, base);
+    // check history fallback deeplinking
+    if (fallback && checkFallback(this.base)) {
+      return
+    }
+    ensureSlash();
+  }
+
+  if ( History$$1 ) HashHistory.__proto__ = History$$1;
+  HashHistory.prototype = Object.create( History$$1 && History$$1.prototype );
+  HashHistory.prototype.constructor = HashHistory;
+
+  // this is delayed until the app mounts
+  // to avoid the hashchange listener being fired too early
+  HashHistory.prototype.setupListeners = function setupListeners () {
+    var this$1 = this;
+
+    var router = this.router;
+    var expectScroll = router.options.scrollBehavior;
+    var supportsScroll = supportsPushState && expectScroll;
+
+    if (supportsScroll) {
+      setupScroll();
+    }
+
+    window.addEventListener(supportsPushState ? 'popstate' : 'hashchange', function () {
+      var current = this$1.current;
+      if (!ensureSlash()) {
+        return
+      }
+      this$1.transitionTo(getHash(), function (route) {
+        if (supportsScroll) {
+          handleScroll(this$1.router, route, current, true);
+        }
+        if (!supportsPushState) {
+          replaceHash(route.fullPath);
+        }
+      });
+    });
+  };
+
+  HashHistory.prototype.push = function push (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    var ref = this;
+    var fromRoute = ref.current;
+    this.transitionTo(location, function (route) {
+      pushHash(route.fullPath);
+      handleScroll(this$1.router, route, fromRoute, false);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  HashHistory.prototype.replace = function replace (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    var ref = this;
+    var fromRoute = ref.current;
+    this.transitionTo(location, function (route) {
+      replaceHash(route.fullPath);
+      handleScroll(this$1.router, route, fromRoute, false);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  HashHistory.prototype.go = function go (n) {
+    window.history.go(n);
+  };
+
+  HashHistory.prototype.ensureURL = function ensureURL (push) {
+    var current = this.current.fullPath;
+    if (getHash() !== current) {
+      push ? pushHash(current) : replaceHash(current);
+    }
+  };
+
+  HashHistory.prototype.getCurrentLocation = function getCurrentLocation () {
+    return getHash()
+  };
+
+  return HashHistory;
+}(History));
+
+function checkFallback (base) {
+  var location = getLocation(base);
+  if (!/^\/#/.test(location)) {
+    window.location.replace(
+      cleanPath(base + '/#' + location)
+    );
+    return true
+  }
+}
+
+function ensureSlash () {
+  var path = getHash();
+  if (path.charAt(0) === '/') {
+    return true
+  }
+  replaceHash('/' + path);
+  return false
+}
+
+function getHash () {
+  // We can't use window.location.hash here because it's not
+  // consistent across browsers - Firefox will pre-decode it!
+  var href = window.location.href;
+  var index = href.indexOf('#');
+  return index === -1 ? '' : decodeURI(href.slice(index + 1))
+}
+
+function getUrl (path) {
+  var href = window.location.href;
+  var i = href.indexOf('#');
+  var base = i >= 0 ? href.slice(0, i) : href;
+  return (base + "#" + path)
+}
+
+function pushHash (path) {
+  if (supportsPushState) {
+    pushState(getUrl(path));
+  } else {
+    window.location.hash = path;
+  }
+}
+
+function replaceHash (path) {
+  if (supportsPushState) {
+    replaceState(getUrl(path));
+  } else {
+    window.location.replace(getUrl(path));
+  }
+}
+
+/*  */
+
+var AbstractHistory = (function (History$$1) {
+  function AbstractHistory (router, base) {
+    History$$1.call(this, router, base);
+    this.stack = [];
+    this.index = -1;
+  }
+
+  if ( History$$1 ) AbstractHistory.__proto__ = History$$1;
+  AbstractHistory.prototype = Object.create( History$$1 && History$$1.prototype );
+  AbstractHistory.prototype.constructor = AbstractHistory;
+
+  AbstractHistory.prototype.push = function push (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    this.transitionTo(location, function (route) {
+      this$1.stack = this$1.stack.slice(0, this$1.index + 1).concat(route);
+      this$1.index++;
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  AbstractHistory.prototype.replace = function replace (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    this.transitionTo(location, function (route) {
+      this$1.stack = this$1.stack.slice(0, this$1.index).concat(route);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  AbstractHistory.prototype.go = function go (n) {
+    var this$1 = this;
+
+    var targetIndex = this.index + n;
+    if (targetIndex < 0 || targetIndex >= this.stack.length) {
+      return
+    }
+    var route = this.stack[targetIndex];
+    this.confirmTransition(route, function () {
+      this$1.index = targetIndex;
+      this$1.updateRoute(route);
+    });
+  };
+
+  AbstractHistory.prototype.getCurrentLocation = function getCurrentLocation () {
+    var current = this.stack[this.stack.length - 1];
+    return current ? current.fullPath : '/'
+  };
+
+  AbstractHistory.prototype.ensureURL = function ensureURL () {
+    // noop
+  };
+
+  return AbstractHistory;
+}(History));
+
+/*  */
+
+
+
+var VueRouter = function VueRouter (options) {
+  if ( options === void 0 ) options = {};
+
+  this.app = null;
+  this.apps = [];
+  this.options = options;
+  this.beforeHooks = [];
+  this.resolveHooks = [];
+  this.afterHooks = [];
+  this.matcher = createMatcher(options.routes || [], this);
+
+  var mode = options.mode || 'hash';
+  this.fallback = mode === 'history' && !supportsPushState && options.fallback !== false;
+  if (this.fallback) {
+    mode = 'hash';
+  }
+  if (!inBrowser) {
+    mode = 'abstract';
+  }
+  this.mode = mode;
+
+  switch (mode) {
+    case 'history':
+      this.history = new HTML5History(this, options.base);
+      break
+    case 'hash':
+      this.history = new HashHistory(this, options.base, this.fallback);
+      break
+    case 'abstract':
+      this.history = new AbstractHistory(this, options.base);
+      break
+    default:
+      if (process.env.NODE_ENV !== 'production') {
+        assert(false, ("invalid mode: " + mode));
+      }
+  }
+};
+
+var prototypeAccessors = { currentRoute: { configurable: true } };
+
+VueRouter.prototype.match = function match (
+  raw,
+  current,
+  redirectedFrom
+) {
+  return this.matcher.match(raw, current, redirectedFrom)
+};
+
+prototypeAccessors.currentRoute.get = function () {
+  return this.history && this.history.current
+};
+
+VueRouter.prototype.init = function init (app /* Vue component instance */) {
+    var this$1 = this;
+
+  process.env.NODE_ENV !== 'production' && assert(
+    install.installed,
+    "not installed. Make sure to call `Vue.use(VueRouter)` " +
+    "before creating root instance."
+  );
+
+  this.apps.push(app);
+
+  // main app already initialized.
+  if (this.app) {
+    return
+  }
+
+  this.app = app;
+
+  var history = this.history;
+
+  if (history instanceof HTML5History) {
+    history.transitionTo(history.getCurrentLocation());
+  } else if (history instanceof HashHistory) {
+    var setupHashListener = function () {
+      history.setupListeners();
+    };
+    history.transitionTo(
+      history.getCurrentLocation(),
+      setupHashListener,
+      setupHashListener
+    );
+  }
+
+  history.listen(function (route) {
+    this$1.apps.forEach(function (app) {
+      app._route = route;
+    });
+  });
+};
+
+VueRouter.prototype.beforeEach = function beforeEach (fn) {
+  return registerHook(this.beforeHooks, fn)
+};
+
+VueRouter.prototype.beforeResolve = function beforeResolve (fn) {
+  return registerHook(this.resolveHooks, fn)
+};
+
+VueRouter.prototype.afterEach = function afterEach (fn) {
+  return registerHook(this.afterHooks, fn)
+};
+
+VueRouter.prototype.onReady = function onReady (cb, errorCb) {
+  this.history.onReady(cb, errorCb);
+};
+
+VueRouter.prototype.onError = function onError (errorCb) {
+  this.history.onError(errorCb);
+};
+
+VueRouter.prototype.push = function push (location, onComplete, onAbort) {
+  this.history.push(location, onComplete, onAbort);
+};
+
+VueRouter.prototype.replace = function replace (location, onComplete, onAbort) {
+  this.history.replace(location, onComplete, onAbort);
+};
+
+VueRouter.prototype.go = function go (n) {
+  this.history.go(n);
+};
+
+VueRouter.prototype.back = function back () {
+  this.go(-1);
+};
+
+VueRouter.prototype.forward = function forward () {
+  this.go(1);
+};
+
+VueRouter.prototype.getMatchedComponents = function getMatchedComponents (to) {
+  var route = to
+    ? to.matched
+      ? to
+      : this.resolve(to).route
+    : this.currentRoute;
+  if (!route) {
+    return []
+  }
+  return [].concat.apply([], route.matched.map(function (m) {
+    return Object.keys(m.components).map(function (key) {
+      return m.components[key]
+    })
+  }))
+};
+
+VueRouter.prototype.resolve = function resolve (
+  to,
+  current,
+  append
+) {
+  var location = normalizeLocation(
+    to,
+    current || this.history.current,
+    append,
+    this
+  );
+  var route = this.match(location, current);
+  var fullPath = route.redirectedFrom || route.fullPath;
+  var base = this.history.base;
+  var href = createHref(base, fullPath, this.mode);
+  return {
+    location: location,
+    route: route,
+    href: href,
+    // for backwards compat
+    normalizedTo: location,
+    resolved: route
+  }
+};
+
+VueRouter.prototype.addRoutes = function addRoutes (routes) {
+  this.matcher.addRoutes(routes);
+  if (this.history.current !== START) {
+    this.history.transitionTo(this.history.getCurrentLocation());
+  }
+};
+
+Object.defineProperties( VueRouter.prototype, prototypeAccessors );
+
+function registerHook (list, fn) {
+  list.push(fn);
+  return function () {
+    var i = list.indexOf(fn);
+    if (i > -1) { list.splice(i, 1); }
+  }
+}
+
+function createHref (base, fullPath, mode) {
+  var path = mode === 'hash' ? '#' + fullPath : fullPath;
+  return base ? cleanPath(base + '/' + path) : path
+}
+
+VueRouter.install = install;
+VueRouter.version = '3.0.2';
+
+if (inBrowser && window.Vue) {
+  window.Vue.use(VueRouter);
+}
+
+export default VueRouter;
diff --git a/node_modules/vue-router/dist/vue-router.js b/node_modules/vue-router/dist/vue-router.js
new file mode 100644
index 0000000..c20aa9f
--- /dev/null
+++ b/node_modules/vue-router/dist/vue-router.js
@@ -0,0 +1,2626 @@
+/*!
+  * vue-router v3.0.2
+  * (c) 2018 Evan You
+  * @license MIT
+  */
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+	typeof define === 'function' && define.amd ? define(factory) :
+	(global.VueRouter = factory());
+}(this, (function () { 'use strict';
+
+/*  */
+
+function assert (condition, message) {
+  if (!condition) {
+    throw new Error(("[vue-router] " + message))
+  }
+}
+
+function warn (condition, message) {
+  if ("development" !== 'production' && !condition) {
+    typeof console !== 'undefined' && console.warn(("[vue-router] " + message));
+  }
+}
+
+function isError (err) {
+  return Object.prototype.toString.call(err).indexOf('Error') > -1
+}
+
+function extend (a, b) {
+  for (var key in b) {
+    a[key] = b[key];
+  }
+  return a
+}
+
+var View = {
+  name: 'RouterView',
+  functional: true,
+  props: {
+    name: {
+      type: String,
+      default: 'default'
+    }
+  },
+  render: function render (_, ref) {
+    var props = ref.props;
+    var children = ref.children;
+    var parent = ref.parent;
+    var data = ref.data;
+
+    // used by devtools to display a router-view badge
+    data.routerView = true;
+
+    // directly use parent context's createElement() function
+    // so that components rendered by router-view can resolve named slots
+    var h = parent.$createElement;
+    var name = props.name;
+    var route = parent.$route;
+    var cache = parent._routerViewCache || (parent._routerViewCache = {});
+
+    // determine current view depth, also check to see if the tree
+    // has been toggled inactive but kept-alive.
+    var depth = 0;
+    var inactive = false;
+    while (parent && parent._routerRoot !== parent) {
+      if (parent.$vnode && parent.$vnode.data.routerView) {
+        depth++;
+      }
+      if (parent._inactive) {
+        inactive = true;
+      }
+      parent = parent.$parent;
+    }
+    data.routerViewDepth = depth;
+
+    // render previous view if the tree is inactive and kept-alive
+    if (inactive) {
+      return h(cache[name], data, children)
+    }
+
+    var matched = route.matched[depth];
+    // render empty node if no matched route
+    if (!matched) {
+      cache[name] = null;
+      return h()
+    }
+
+    var component = cache[name] = matched.components[name];
+
+    // attach instance registration hook
+    // this will be called in the instance's injected lifecycle hooks
+    data.registerRouteInstance = function (vm, val) {
+      // val could be undefined for unregistration
+      var current = matched.instances[name];
+      if (
+        (val && current !== vm) ||
+        (!val && current === vm)
+      ) {
+        matched.instances[name] = val;
+      }
+    }
+
+    // also register instance in prepatch hook
+    // in case the same component instance is reused across different routes
+    ;(data.hook || (data.hook = {})).prepatch = function (_, vnode) {
+      matched.instances[name] = vnode.componentInstance;
+    };
+
+    // resolve props
+    var propsToPass = data.props = resolveProps(route, matched.props && matched.props[name]);
+    if (propsToPass) {
+      // clone to prevent mutation
+      propsToPass = data.props = extend({}, propsToPass);
+      // pass non-declared props as attrs
+      var attrs = data.attrs = data.attrs || {};
+      for (var key in propsToPass) {
+        if (!component.props || !(key in component.props)) {
+          attrs[key] = propsToPass[key];
+          delete propsToPass[key];
+        }
+      }
+    }
+
+    return h(component, data, children)
+  }
+}
+
+function resolveProps (route, config) {
+  switch (typeof config) {
+    case 'undefined':
+      return
+    case 'object':
+      return config
+    case 'function':
+      return config(route)
+    case 'boolean':
+      return config ? route.params : undefined
+    default:
+      {
+        warn(
+          false,
+          "props in \"" + (route.path) + "\" is a " + (typeof config) + ", " +
+          "expecting an object, function or boolean."
+        );
+      }
+  }
+}
+
+/*  */
+
+var encodeReserveRE = /[!'()*]/g;
+var encodeReserveReplacer = function (c) { return '%' + c.charCodeAt(0).toString(16); };
+var commaRE = /%2C/g;
+
+// fixed encodeURIComponent which is more conformant to RFC3986:
+// - escapes [!'()*]
+// - preserve commas
+var encode = function (str) { return encodeURIComponent(str)
+  .replace(encodeReserveRE, encodeReserveReplacer)
+  .replace(commaRE, ','); };
+
+var decode = decodeURIComponent;
+
+function resolveQuery (
+  query,
+  extraQuery,
+  _parseQuery
+) {
+  if ( extraQuery === void 0 ) extraQuery = {};
+
+  var parse = _parseQuery || parseQuery;
+  var parsedQuery;
+  try {
+    parsedQuery = parse(query || '');
+  } catch (e) {
+    "development" !== 'production' && warn(false, e.message);
+    parsedQuery = {};
+  }
+  for (var key in extraQuery) {
+    parsedQuery[key] = extraQuery[key];
+  }
+  return parsedQuery
+}
+
+function parseQuery (query) {
+  var res = {};
+
+  query = query.trim().replace(/^(\?|#|&)/, '');
+
+  if (!query) {
+    return res
+  }
+
+  query.split('&').forEach(function (param) {
+    var parts = param.replace(/\+/g, ' ').split('=');
+    var key = decode(parts.shift());
+    var val = parts.length > 0
+      ? decode(parts.join('='))
+      : null;
+
+    if (res[key] === undefined) {
+      res[key] = val;
+    } else if (Array.isArray(res[key])) {
+      res[key].push(val);
+    } else {
+      res[key] = [res[key], val];
+    }
+  });
+
+  return res
+}
+
+function stringifyQuery (obj) {
+  var res = obj ? Object.keys(obj).map(function (key) {
+    var val = obj[key];
+
+    if (val === undefined) {
+      return ''
+    }
+
+    if (val === null) {
+      return encode(key)
+    }
+
+    if (Array.isArray(val)) {
+      var result = [];
+      val.forEach(function (val2) {
+        if (val2 === undefined) {
+          return
+        }
+        if (val2 === null) {
+          result.push(encode(key));
+        } else {
+          result.push(encode(key) + '=' + encode(val2));
+        }
+      });
+      return result.join('&')
+    }
+
+    return encode(key) + '=' + encode(val)
+  }).filter(function (x) { return x.length > 0; }).join('&') : null;
+  return res ? ("?" + res) : ''
+}
+
+/*  */
+
+var trailingSlashRE = /\/?$/;
+
+function createRoute (
+  record,
+  location,
+  redirectedFrom,
+  router
+) {
+  var stringifyQuery$$1 = router && router.options.stringifyQuery;
+
+  var query = location.query || {};
+  try {
+    query = clone(query);
+  } catch (e) {}
+
+  var route = {
+    name: location.name || (record && record.name),
+    meta: (record && record.meta) || {},
+    path: location.path || '/',
+    hash: location.hash || '',
+    query: query,
+    params: location.params || {},
+    fullPath: getFullPath(location, stringifyQuery$$1),
+    matched: record ? formatMatch(record) : []
+  };
+  if (redirectedFrom) {
+    route.redirectedFrom = getFullPath(redirectedFrom, stringifyQuery$$1);
+  }
+  return Object.freeze(route)
+}
+
+function clone (value) {
+  if (Array.isArray(value)) {
+    return value.map(clone)
+  } else if (value && typeof value === 'object') {
+    var res = {};
+    for (var key in value) {
+      res[key] = clone(value[key]);
+    }
+    return res
+  } else {
+    return value
+  }
+}
+
+// the starting route that represents the initial state
+var START = createRoute(null, {
+  path: '/'
+});
+
+function formatMatch (record) {
+  var res = [];
+  while (record) {
+    res.unshift(record);
+    record = record.parent;
+  }
+  return res
+}
+
+function getFullPath (
+  ref,
+  _stringifyQuery
+) {
+  var path = ref.path;
+  var query = ref.query; if ( query === void 0 ) query = {};
+  var hash = ref.hash; if ( hash === void 0 ) hash = '';
+
+  var stringify = _stringifyQuery || stringifyQuery;
+  return (path || '/') + stringify(query) + hash
+}
+
+function isSameRoute (a, b) {
+  if (b === START) {
+    return a === b
+  } else if (!b) {
+    return false
+  } else if (a.path && b.path) {
+    return (
+      a.path.replace(trailingSlashRE, '') === b.path.replace(trailingSlashRE, '') &&
+      a.hash === b.hash &&
+      isObjectEqual(a.query, b.query)
+    )
+  } else if (a.name && b.name) {
+    return (
+      a.name === b.name &&
+      a.hash === b.hash &&
+      isObjectEqual(a.query, b.query) &&
+      isObjectEqual(a.params, b.params)
+    )
+  } else {
+    return false
+  }
+}
+
+function isObjectEqual (a, b) {
+  if ( a === void 0 ) a = {};
+  if ( b === void 0 ) b = {};
+
+  // handle null value #1566
+  if (!a || !b) { return a === b }
+  var aKeys = Object.keys(a);
+  var bKeys = Object.keys(b);
+  if (aKeys.length !== bKeys.length) {
+    return false
+  }
+  return aKeys.every(function (key) {
+    var aVal = a[key];
+    var bVal = b[key];
+    // check nested equality
+    if (typeof aVal === 'object' && typeof bVal === 'object') {
+      return isObjectEqual(aVal, bVal)
+    }
+    return String(aVal) === String(bVal)
+  })
+}
+
+function isIncludedRoute (current, target) {
+  return (
+    current.path.replace(trailingSlashRE, '/').indexOf(
+      target.path.replace(trailingSlashRE, '/')
+    ) === 0 &&
+    (!target.hash || current.hash === target.hash) &&
+    queryIncludes(current.query, target.query)
+  )
+}
+
+function queryIncludes (current, target) {
+  for (var key in target) {
+    if (!(key in current)) {
+      return false
+    }
+  }
+  return true
+}
+
+/*  */
+
+// work around weird flow bug
+var toTypes = [String, Object];
+var eventTypes = [String, Array];
+
+var Link = {
+  name: 'RouterLink',
+  props: {
+    to: {
+      type: toTypes,
+      required: true
+    },
+    tag: {
+      type: String,
+      default: 'a'
+    },
+    exact: Boolean,
+    append: Boolean,
+    replace: Boolean,
+    activeClass: String,
+    exactActiveClass: String,
+    event: {
+      type: eventTypes,
+      default: 'click'
+    }
+  },
+  render: function render (h) {
+    var this$1 = this;
+
+    var router = this.$router;
+    var current = this.$route;
+    var ref = router.resolve(this.to, current, this.append);
+    var location = ref.location;
+    var route = ref.route;
+    var href = ref.href;
+
+    var classes = {};
+    var globalActiveClass = router.options.linkActiveClass;
+    var globalExactActiveClass = router.options.linkExactActiveClass;
+    // Support global empty active class
+    var activeClassFallback = globalActiveClass == null
+      ? 'router-link-active'
+      : globalActiveClass;
+    var exactActiveClassFallback = globalExactActiveClass == null
+      ? 'router-link-exact-active'
+      : globalExactActiveClass;
+    var activeClass = this.activeClass == null
+      ? activeClassFallback
+      : this.activeClass;
+    var exactActiveClass = this.exactActiveClass == null
+      ? exactActiveClassFallback
+      : this.exactActiveClass;
+    var compareTarget = location.path
+      ? createRoute(null, location, null, router)
+      : route;
+
+    classes[exactActiveClass] = isSameRoute(current, compareTarget);
+    classes[activeClass] = this.exact
+      ? classes[exactActiveClass]
+      : isIncludedRoute(current, compareTarget);
+
+    var handler = function (e) {
+      if (guardEvent(e)) {
+        if (this$1.replace) {
+          router.replace(location);
+        } else {
+          router.push(location);
+        }
+      }
+    };
+
+    var on = { click: guardEvent };
+    if (Array.isArray(this.event)) {
+      this.event.forEach(function (e) { on[e] = handler; });
+    } else {
+      on[this.event] = handler;
+    }
+
+    var data = {
+      class: classes
+    };
+
+    if (this.tag === 'a') {
+      data.on = on;
+      data.attrs = { href: href };
+    } else {
+      // find the first <a> child and apply listener and href
+      var a = findAnchor(this.$slots.default);
+      if (a) {
+        // in case the <a> is a static node
+        a.isStatic = false;
+        var aData = a.data = extend({}, a.data);
+        aData.on = on;
+        var aAttrs = a.data.attrs = extend({}, a.data.attrs);
+        aAttrs.href = href;
+      } else {
+        // doesn't have <a> child, apply listener to self
+        data.on = on;
+      }
+    }
+
+    return h(this.tag, data, this.$slots.default)
+  }
+}
+
+function guardEvent (e) {
+  // don't redirect with control keys
+  if (e.metaKey || e.altKey || e.ctrlKey || e.shiftKey) { return }
+  // don't redirect when preventDefault called
+  if (e.defaultPrevented) { return }
+  // don't redirect on right click
+  if (e.button !== undefined && e.button !== 0) { return }
+  // don't redirect if `target="_blank"`
+  if (e.currentTarget && e.currentTarget.getAttribute) {
+    var target = e.currentTarget.getAttribute('target');
+    if (/\b_blank\b/i.test(target)) { return }
+  }
+  // this may be a Weex event which doesn't have this method
+  if (e.preventDefault) {
+    e.preventDefault();
+  }
+  return true
+}
+
+function findAnchor (children) {
+  if (children) {
+    var child;
+    for (var i = 0; i < children.length; i++) {
+      child = children[i];
+      if (child.tag === 'a') {
+        return child
+      }
+      if (child.children && (child = findAnchor(child.children))) {
+        return child
+      }
+    }
+  }
+}
+
+var _Vue;
+
+function install (Vue) {
+  if (install.installed && _Vue === Vue) { return }
+  install.installed = true;
+
+  _Vue = Vue;
+
+  var isDef = function (v) { return v !== undefined; };
+
+  var registerInstance = function (vm, callVal) {
+    var i = vm.$options._parentVnode;
+    if (isDef(i) && isDef(i = i.data) && isDef(i = i.registerRouteInstance)) {
+      i(vm, callVal);
+    }
+  };
+
+  Vue.mixin({
+    beforeCreate: function beforeCreate () {
+      if (isDef(this.$options.router)) {
+        this._routerRoot = this;
+        this._router = this.$options.router;
+        this._router.init(this);
+        Vue.util.defineReactive(this, '_route', this._router.history.current);
+      } else {
+        this._routerRoot = (this.$parent && this.$parent._routerRoot) || this;
+      }
+      registerInstance(this, this);
+    },
+    destroyed: function destroyed () {
+      registerInstance(this);
+    }
+  });
+
+  Object.defineProperty(Vue.prototype, '$router', {
+    get: function get () { return this._routerRoot._router }
+  });
+
+  Object.defineProperty(Vue.prototype, '$route', {
+    get: function get () { return this._routerRoot._route }
+  });
+
+  Vue.component('RouterView', View);
+  Vue.component('RouterLink', Link);
+
+  var strats = Vue.config.optionMergeStrategies;
+  // use the same hook merging strategy for route hooks
+  strats.beforeRouteEnter = strats.beforeRouteLeave = strats.beforeRouteUpdate = strats.created;
+}
+
+/*  */
+
+var inBrowser = typeof window !== 'undefined';
+
+/*  */
+
+function resolvePath (
+  relative,
+  base,
+  append
+) {
+  var firstChar = relative.charAt(0);
+  if (firstChar === '/') {
+    return relative
+  }
+
+  if (firstChar === '?' || firstChar === '#') {
+    return base + relative
+  }
+
+  var stack = base.split('/');
+
+  // remove trailing segment if:
+  // - not appending
+  // - appending to trailing slash (last segment is empty)
+  if (!append || !stack[stack.length - 1]) {
+    stack.pop();
+  }
+
+  // resolve relative path
+  var segments = relative.replace(/^\//, '').split('/');
+  for (var i = 0; i < segments.length; i++) {
+    var segment = segments[i];
+    if (segment === '..') {
+      stack.pop();
+    } else if (segment !== '.') {
+      stack.push(segment);
+    }
+  }
+
+  // ensure leading slash
+  if (stack[0] !== '') {
+    stack.unshift('');
+  }
+
+  return stack.join('/')
+}
+
+function parsePath (path) {
+  var hash = '';
+  var query = '';
+
+  var hashIndex = path.indexOf('#');
+  if (hashIndex >= 0) {
+    hash = path.slice(hashIndex);
+    path = path.slice(0, hashIndex);
+  }
+
+  var queryIndex = path.indexOf('?');
+  if (queryIndex >= 0) {
+    query = path.slice(queryIndex + 1);
+    path = path.slice(0, queryIndex);
+  }
+
+  return {
+    path: path,
+    query: query,
+    hash: hash
+  }
+}
+
+function cleanPath (path) {
+  return path.replace(/\/\//g, '/')
+}
+
+var isarray = Array.isArray || function (arr) {
+  return Object.prototype.toString.call(arr) == '[object Array]';
+};
+
+/**
+ * Expose `pathToRegexp`.
+ */
+var pathToRegexp_1 = pathToRegexp;
+var parse_1 = parse;
+var compile_1 = compile;
+var tokensToFunction_1 = tokensToFunction;
+var tokensToRegExp_1 = tokensToRegExp;
+
+/**
+ * The main path matching regexp utility.
+ *
+ * @type {RegExp}
+ */
+var PATH_REGEXP = new RegExp([
+  // Match escaped characters that would otherwise appear in future matches.
+  // This allows the user to escape special characters that won't transform.
+  '(\\\\.)',
+  // Match Express-style parameters and un-named parameters with a prefix
+  // and optional suffixes. Matches appear as:
+  //
+  // "/:test(\\d+)?" => ["/", "test", "\d+", undefined, "?", undefined]
+  // "/route(\\d+)"  => [undefined, undefined, undefined, "\d+", undefined, undefined]
+  // "/*"            => ["/", undefined, undefined, undefined, undefined, "*"]
+  '([\\/.])?(?:(?:\\:(\\w+)(?:\\(((?:\\\\.|[^\\\\()])+)\\))?|\\(((?:\\\\.|[^\\\\()])+)\\))([+*?])?|(\\*))'
+].join('|'), 'g');
+
+/**
+ * Parse a string for the raw tokens.
+ *
+ * @param  {string}  str
+ * @param  {Object=} options
+ * @return {!Array}
+ */
+function parse (str, options) {
+  var tokens = [];
+  var key = 0;
+  var index = 0;
+  var path = '';
+  var defaultDelimiter = options && options.delimiter || '/';
+  var res;
+
+  while ((res = PATH_REGEXP.exec(str)) != null) {
+    var m = res[0];
+    var escaped = res[1];
+    var offset = res.index;
+    path += str.slice(index, offset);
+    index = offset + m.length;
+
+    // Ignore already escaped sequences.
+    if (escaped) {
+      path += escaped[1];
+      continue
+    }
+
+    var next = str[index];
+    var prefix = res[2];
+    var name = res[3];
+    var capture = res[4];
+    var group = res[5];
+    var modifier = res[6];
+    var asterisk = res[7];
+
+    // Push the current path onto the tokens.
+    if (path) {
+      tokens.push(path);
+      path = '';
+    }
+
+    var partial = prefix != null && next != null && next !== prefix;
+    var repeat = modifier === '+' || modifier === '*';
+    var optional = modifier === '?' || modifier === '*';
+    var delimiter = res[2] || defaultDelimiter;
+    var pattern = capture || group;
+
+    tokens.push({
+      name: name || key++,
+      prefix: prefix || '',
+      delimiter: delimiter,
+      optional: optional,
+      repeat: repeat,
+      partial: partial,
+      asterisk: !!asterisk,
+      pattern: pattern ? escapeGroup(pattern) : (asterisk ? '.*' : '[^' + escapeString(delimiter) + ']+?')
+    });
+  }
+
+  // Match any characters still remaining.
+  if (index < str.length) {
+    path += str.substr(index);
+  }
+
+  // If the path exists, push it onto the end.
+  if (path) {
+    tokens.push(path);
+  }
+
+  return tokens
+}
+
+/**
+ * Compile a string to a template function for the path.
+ *
+ * @param  {string}             str
+ * @param  {Object=}            options
+ * @return {!function(Object=, Object=)}
+ */
+function compile (str, options) {
+  return tokensToFunction(parse(str, options))
+}
+
+/**
+ * Prettier encoding of URI path segments.
+ *
+ * @param  {string}
+ * @return {string}
+ */
+function encodeURIComponentPretty (str) {
+  return encodeURI(str).replace(/[\/?#]/g, function (c) {
+    return '%' + c.charCodeAt(0).toString(16).toUpperCase()
+  })
+}
+
+/**
+ * Encode the asterisk parameter. Similar to `pretty`, but allows slashes.
+ *
+ * @param  {string}
+ * @return {string}
+ */
+function encodeAsterisk (str) {
+  return encodeURI(str).replace(/[?#]/g, function (c) {
+    return '%' + c.charCodeAt(0).toString(16).toUpperCase()
+  })
+}
+
+/**
+ * Expose a method for transforming tokens into the path function.
+ */
+function tokensToFunction (tokens) {
+  // Compile all the tokens into regexps.
+  var matches = new Array(tokens.length);
+
+  // Compile all the patterns before compilation.
+  for (var i = 0; i < tokens.length; i++) {
+    if (typeof tokens[i] === 'object') {
+      matches[i] = new RegExp('^(?:' + tokens[i].pattern + ')$');
+    }
+  }
+
+  return function (obj, opts) {
+    var path = '';
+    var data = obj || {};
+    var options = opts || {};
+    var encode = options.pretty ? encodeURIComponentPretty : encodeURIComponent;
+
+    for (var i = 0; i < tokens.length; i++) {
+      var token = tokens[i];
+
+      if (typeof token === 'string') {
+        path += token;
+
+        continue
+      }
+
+      var value = data[token.name];
+      var segment;
+
+      if (value == null) {
+        if (token.optional) {
+          // Prepend partial segment prefixes.
+          if (token.partial) {
+            path += token.prefix;
+          }
+
+          continue
+        } else {
+          throw new TypeError('Expected "' + token.name + '" to be defined')
+        }
+      }
+
+      if (isarray(value)) {
+        if (!token.repeat) {
+          throw new TypeError('Expected "' + token.name + '" to not repeat, but received `' + JSON.stringify(value) + '`')
+        }
+
+        if (value.length === 0) {
+          if (token.optional) {
+            continue
+          } else {
+            throw new TypeError('Expected "' + token.name + '" to not be empty')
+          }
+        }
+
+        for (var j = 0; j < value.length; j++) {
+          segment = encode(value[j]);
+
+          if (!matches[i].test(segment)) {
+            throw new TypeError('Expected all "' + token.name + '" to match "' + token.pattern + '", but received `' + JSON.stringify(segment) + '`')
+          }
+
+          path += (j === 0 ? token.prefix : token.delimiter) + segment;
+        }
+
+        continue
+      }
+
+      segment = token.asterisk ? encodeAsterisk(value) : encode(value);
+
+      if (!matches[i].test(segment)) {
+        throw new TypeError('Expected "' + token.name + '" to match "' + token.pattern + '", but received "' + segment + '"')
+      }
+
+      path += token.prefix + segment;
+    }
+
+    return path
+  }
+}
+
+/**
+ * Escape a regular expression string.
+ *
+ * @param  {string} str
+ * @return {string}
+ */
+function escapeString (str) {
+  return str.replace(/([.+*?=^!:${}()[\]|\/\\])/g, '\\$1')
+}
+
+/**
+ * Escape the capturing group by escaping special characters and meaning.
+ *
+ * @param  {string} group
+ * @return {string}
+ */
+function escapeGroup (group) {
+  return group.replace(/([=!:$\/()])/g, '\\$1')
+}
+
+/**
+ * Attach the keys as a property of the regexp.
+ *
+ * @param  {!RegExp} re
+ * @param  {Array}   keys
+ * @return {!RegExp}
+ */
+function attachKeys (re, keys) {
+  re.keys = keys;
+  return re
+}
+
+/**
+ * Get the flags for a regexp from the options.
+ *
+ * @param  {Object} options
+ * @return {string}
+ */
+function flags (options) {
+  return options.sensitive ? '' : 'i'
+}
+
+/**
+ * Pull out keys from a regexp.
+ *
+ * @param  {!RegExp} path
+ * @param  {!Array}  keys
+ * @return {!RegExp}
+ */
+function regexpToRegexp (path, keys) {
+  // Use a negative lookahead to match only capturing groups.
+  var groups = path.source.match(/\((?!\?)/g);
+
+  if (groups) {
+    for (var i = 0; i < groups.length; i++) {
+      keys.push({
+        name: i,
+        prefix: null,
+        delimiter: null,
+        optional: false,
+        repeat: false,
+        partial: false,
+        asterisk: false,
+        pattern: null
+      });
+    }
+  }
+
+  return attachKeys(path, keys)
+}
+
+/**
+ * Transform an array into a regexp.
+ *
+ * @param  {!Array}  path
+ * @param  {Array}   keys
+ * @param  {!Object} options
+ * @return {!RegExp}
+ */
+function arrayToRegexp (path, keys, options) {
+  var parts = [];
+
+  for (var i = 0; i < path.length; i++) {
+    parts.push(pathToRegexp(path[i], keys, options).source);
+  }
+
+  var regexp = new RegExp('(?:' + parts.join('|') + ')', flags(options));
+
+  return attachKeys(regexp, keys)
+}
+
+/**
+ * Create a path regexp from string input.
+ *
+ * @param  {string}  path
+ * @param  {!Array}  keys
+ * @param  {!Object} options
+ * @return {!RegExp}
+ */
+function stringToRegexp (path, keys, options) {
+  return tokensToRegExp(parse(path, options), keys, options)
+}
+
+/**
+ * Expose a function for taking tokens and returning a RegExp.
+ *
+ * @param  {!Array}          tokens
+ * @param  {(Array|Object)=} keys
+ * @param  {Object=}         options
+ * @return {!RegExp}
+ */
+function tokensToRegExp (tokens, keys, options) {
+  if (!isarray(keys)) {
+    options = /** @type {!Object} */ (keys || options);
+    keys = [];
+  }
+
+  options = options || {};
+
+  var strict = options.strict;
+  var end = options.end !== false;
+  var route = '';
+
+  // Iterate over the tokens and create our regexp string.
+  for (var i = 0; i < tokens.length; i++) {
+    var token = tokens[i];
+
+    if (typeof token === 'string') {
+      route += escapeString(token);
+    } else {
+      var prefix = escapeString(token.prefix);
+      var capture = '(?:' + token.pattern + ')';
+
+      keys.push(token);
+
+      if (token.repeat) {
+        capture += '(?:' + prefix + capture + ')*';
+      }
+
+      if (token.optional) {
+        if (!token.partial) {
+          capture = '(?:' + prefix + '(' + capture + '))?';
+        } else {
+          capture = prefix + '(' + capture + ')?';
+        }
+      } else {
+        capture = prefix + '(' + capture + ')';
+      }
+
+      route += capture;
+    }
+  }
+
+  var delimiter = escapeString(options.delimiter || '/');
+  var endsWithDelimiter = route.slice(-delimiter.length) === delimiter;
+
+  // In non-strict mode we allow a slash at the end of match. If the path to
+  // match already ends with a slash, we remove it for consistency. The slash
+  // is valid at the end of a path match, not in the middle. This is important
+  // in non-ending mode, where "/test/" shouldn't match "/test//route".
+  if (!strict) {
+    route = (endsWithDelimiter ? route.slice(0, -delimiter.length) : route) + '(?:' + delimiter + '(?=$))?';
+  }
+
+  if (end) {
+    route += '$';
+  } else {
+    // In non-ending mode, we need the capturing groups to match as much as
+    // possible by using a positive lookahead to the end or next path segment.
+    route += strict && endsWithDelimiter ? '' : '(?=' + delimiter + '|$)';
+  }
+
+  return attachKeys(new RegExp('^' + route, flags(options)), keys)
+}
+
+/**
+ * Normalize the given path string, returning a regular expression.
+ *
+ * An empty array can be passed in for the keys, which will hold the
+ * placeholder key descriptions. For example, using `/user/:id`, `keys` will
+ * contain `[{ name: 'id', delimiter: '/', optional: false, repeat: false }]`.
+ *
+ * @param  {(string|RegExp|Array)} path
+ * @param  {(Array|Object)=}       keys
+ * @param  {Object=}               options
+ * @return {!RegExp}
+ */
+function pathToRegexp (path, keys, options) {
+  if (!isarray(keys)) {
+    options = /** @type {!Object} */ (keys || options);
+    keys = [];
+  }
+
+  options = options || {};
+
+  if (path instanceof RegExp) {
+    return regexpToRegexp(path, /** @type {!Array} */ (keys))
+  }
+
+  if (isarray(path)) {
+    return arrayToRegexp(/** @type {!Array} */ (path), /** @type {!Array} */ (keys), options)
+  }
+
+  return stringToRegexp(/** @type {string} */ (path), /** @type {!Array} */ (keys), options)
+}
+pathToRegexp_1.parse = parse_1;
+pathToRegexp_1.compile = compile_1;
+pathToRegexp_1.tokensToFunction = tokensToFunction_1;
+pathToRegexp_1.tokensToRegExp = tokensToRegExp_1;
+
+/*  */
+
+// $flow-disable-line
+var regexpCompileCache = Object.create(null);
+
+function fillParams (
+  path,
+  params,
+  routeMsg
+) {
+  try {
+    var filler =
+      regexpCompileCache[path] ||
+      (regexpCompileCache[path] = pathToRegexp_1.compile(path));
+    return filler(params || {}, { pretty: true })
+  } catch (e) {
+    {
+      warn(false, ("missing param for " + routeMsg + ": " + (e.message)));
+    }
+    return ''
+  }
+}
+
+/*  */
+
+function createRouteMap (
+  routes,
+  oldPathList,
+  oldPathMap,
+  oldNameMap
+) {
+  // the path list is used to control path matching priority
+  var pathList = oldPathList || [];
+  // $flow-disable-line
+  var pathMap = oldPathMap || Object.create(null);
+  // $flow-disable-line
+  var nameMap = oldNameMap || Object.create(null);
+
+  routes.forEach(function (route) {
+    addRouteRecord(pathList, pathMap, nameMap, route);
+  });
+
+  // ensure wildcard routes are always at the end
+  for (var i = 0, l = pathList.length; i < l; i++) {
+    if (pathList[i] === '*') {
+      pathList.push(pathList.splice(i, 1)[0]);
+      l--;
+      i--;
+    }
+  }
+
+  return {
+    pathList: pathList,
+    pathMap: pathMap,
+    nameMap: nameMap
+  }
+}
+
+function addRouteRecord (
+  pathList,
+  pathMap,
+  nameMap,
+  route,
+  parent,
+  matchAs
+) {
+  var path = route.path;
+  var name = route.name;
+  {
+    assert(path != null, "\"path\" is required in a route configuration.");
+    assert(
+      typeof route.component !== 'string',
+      "route config \"component\" for path: " + (String(path || name)) + " cannot be a " +
+      "string id. Use an actual component instead."
+    );
+  }
+
+  var pathToRegexpOptions = route.pathToRegexpOptions || {};
+  var normalizedPath = normalizePath(
+    path,
+    parent,
+    pathToRegexpOptions.strict
+  );
+
+  if (typeof route.caseSensitive === 'boolean') {
+    pathToRegexpOptions.sensitive = route.caseSensitive;
+  }
+
+  var record = {
+    path: normalizedPath,
+    regex: compileRouteRegex(normalizedPath, pathToRegexpOptions),
+    components: route.components || { default: route.component },
+    instances: {},
+    name: name,
+    parent: parent,
+    matchAs: matchAs,
+    redirect: route.redirect,
+    beforeEnter: route.beforeEnter,
+    meta: route.meta || {},
+    props: route.props == null
+      ? {}
+      : route.components
+        ? route.props
+        : { default: route.props }
+  };
+
+  if (route.children) {
+    // Warn if route is named, does not redirect and has a default child route.
+    // If users navigate to this route by name, the default child will
+    // not be rendered (GH Issue #629)
+    {
+      if (route.name && !route.redirect && route.children.some(function (child) { return /^\/?$/.test(child.path); })) {
+        warn(
+          false,
+          "Named Route '" + (route.name) + "' has a default child route. " +
+          "When navigating to this named route (:to=\"{name: '" + (route.name) + "'\"), " +
+          "the default child route will not be rendered. Remove the name from " +
+          "this route and use the name of the default child route for named " +
+          "links instead."
+        );
+      }
+    }
+    route.children.forEach(function (child) {
+      var childMatchAs = matchAs
+        ? cleanPath((matchAs + "/" + (child.path)))
+        : undefined;
+      addRouteRecord(pathList, pathMap, nameMap, child, record, childMatchAs);
+    });
+  }
+
+  if (route.alias !== undefined) {
+    var aliases = Array.isArray(route.alias)
+      ? route.alias
+      : [route.alias];
+
+    aliases.forEach(function (alias) {
+      var aliasRoute = {
+        path: alias,
+        children: route.children
+      };
+      addRouteRecord(
+        pathList,
+        pathMap,
+        nameMap,
+        aliasRoute,
+        parent,
+        record.path || '/' // matchAs
+      );
+    });
+  }
+
+  if (!pathMap[record.path]) {
+    pathList.push(record.path);
+    pathMap[record.path] = record;
+  }
+
+  if (name) {
+    if (!nameMap[name]) {
+      nameMap[name] = record;
+    } else if ("development" !== 'production' && !matchAs) {
+      warn(
+        false,
+        "Duplicate named routes definition: " +
+        "{ name: \"" + name + "\", path: \"" + (record.path) + "\" }"
+      );
+    }
+  }
+}
+
+function compileRouteRegex (path, pathToRegexpOptions) {
+  var regex = pathToRegexp_1(path, [], pathToRegexpOptions);
+  {
+    var keys = Object.create(null);
+    regex.keys.forEach(function (key) {
+      warn(!keys[key.name], ("Duplicate param keys in route with path: \"" + path + "\""));
+      keys[key.name] = true;
+    });
+  }
+  return regex
+}
+
+function normalizePath (path, parent, strict) {
+  if (!strict) { path = path.replace(/\/$/, ''); }
+  if (path[0] === '/') { return path }
+  if (parent == null) { return path }
+  return cleanPath(((parent.path) + "/" + path))
+}
+
+/*  */
+
+function normalizeLocation (
+  raw,
+  current,
+  append,
+  router
+) {
+  var next = typeof raw === 'string' ? { path: raw } : raw;
+  // named target
+  if (next.name || next._normalized) {
+    return next
+  }
+
+  // relative params
+  if (!next.path && next.params && current) {
+    next = extend({}, next);
+    next._normalized = true;
+    var params = extend(extend({}, current.params), next.params);
+    if (current.name) {
+      next.name = current.name;
+      next.params = params;
+    } else if (current.matched.length) {
+      var rawPath = current.matched[current.matched.length - 1].path;
+      next.path = fillParams(rawPath, params, ("path " + (current.path)));
+    } else {
+      warn(false, "relative params navigation requires a current route.");
+    }
+    return next
+  }
+
+  var parsedPath = parsePath(next.path || '');
+  var basePath = (current && current.path) || '/';
+  var path = parsedPath.path
+    ? resolvePath(parsedPath.path, basePath, append || next.append)
+    : basePath;
+
+  var query = resolveQuery(
+    parsedPath.query,
+    next.query,
+    router && router.options.parseQuery
+  );
+
+  var hash = next.hash || parsedPath.hash;
+  if (hash && hash.charAt(0) !== '#') {
+    hash = "#" + hash;
+  }
+
+  return {
+    _normalized: true,
+    path: path,
+    query: query,
+    hash: hash
+  }
+}
+
+/*  */
+
+
+
+function createMatcher (
+  routes,
+  router
+) {
+  var ref = createRouteMap(routes);
+  var pathList = ref.pathList;
+  var pathMap = ref.pathMap;
+  var nameMap = ref.nameMap;
+
+  function addRoutes (routes) {
+    createRouteMap(routes, pathList, pathMap, nameMap);
+  }
+
+  function match (
+    raw,
+    currentRoute,
+    redirectedFrom
+  ) {
+    var location = normalizeLocation(raw, currentRoute, false, router);
+    var name = location.name;
+
+    if (name) {
+      var record = nameMap[name];
+      {
+        warn(record, ("Route with name '" + name + "' does not exist"));
+      }
+      if (!record) { return _createRoute(null, location) }
+      var paramNames = record.regex.keys
+        .filter(function (key) { return !key.optional; })
+        .map(function (key) { return key.name; });
+
+      if (typeof location.params !== 'object') {
+        location.params = {};
+      }
+
+      if (currentRoute && typeof currentRoute.params === 'object') {
+        for (var key in currentRoute.params) {
+          if (!(key in location.params) && paramNames.indexOf(key) > -1) {
+            location.params[key] = currentRoute.params[key];
+          }
+        }
+      }
+
+      if (record) {
+        location.path = fillParams(record.path, location.params, ("named route \"" + name + "\""));
+        return _createRoute(record, location, redirectedFrom)
+      }
+    } else if (location.path) {
+      location.params = {};
+      for (var i = 0; i < pathList.length; i++) {
+        var path = pathList[i];
+        var record$1 = pathMap[path];
+        if (matchRoute(record$1.regex, location.path, location.params)) {
+          return _createRoute(record$1, location, redirectedFrom)
+        }
+      }
+    }
+    // no match
+    return _createRoute(null, location)
+  }
+
+  function redirect (
+    record,
+    location
+  ) {
+    var originalRedirect = record.redirect;
+    var redirect = typeof originalRedirect === 'function'
+      ? originalRedirect(createRoute(record, location, null, router))
+      : originalRedirect;
+
+    if (typeof redirect === 'string') {
+      redirect = { path: redirect };
+    }
+
+    if (!redirect || typeof redirect !== 'object') {
+      {
+        warn(
+          false, ("invalid redirect option: " + (JSON.stringify(redirect)))
+        );
+      }
+      return _createRoute(null, location)
+    }
+
+    var re = redirect;
+    var name = re.name;
+    var path = re.path;
+    var query = location.query;
+    var hash = location.hash;
+    var params = location.params;
+    query = re.hasOwnProperty('query') ? re.query : query;
+    hash = re.hasOwnProperty('hash') ? re.hash : hash;
+    params = re.hasOwnProperty('params') ? re.params : params;
+
+    if (name) {
+      // resolved named direct
+      var targetRecord = nameMap[name];
+      {
+        assert(targetRecord, ("redirect failed: named route \"" + name + "\" not found."));
+      }
+      return match({
+        _normalized: true,
+        name: name,
+        query: query,
+        hash: hash,
+        params: params
+      }, undefined, location)
+    } else if (path) {
+      // 1. resolve relative redirect
+      var rawPath = resolveRecordPath(path, record);
+      // 2. resolve params
+      var resolvedPath = fillParams(rawPath, params, ("redirect route with path \"" + rawPath + "\""));
+      // 3. rematch with existing query and hash
+      return match({
+        _normalized: true,
+        path: resolvedPath,
+        query: query,
+        hash: hash
+      }, undefined, location)
+    } else {
+      {
+        warn(false, ("invalid redirect option: " + (JSON.stringify(redirect))));
+      }
+      return _createRoute(null, location)
+    }
+  }
+
+  function alias (
+    record,
+    location,
+    matchAs
+  ) {
+    var aliasedPath = fillParams(matchAs, location.params, ("aliased route with path \"" + matchAs + "\""));
+    var aliasedMatch = match({
+      _normalized: true,
+      path: aliasedPath
+    });
+    if (aliasedMatch) {
+      var matched = aliasedMatch.matched;
+      var aliasedRecord = matched[matched.length - 1];
+      location.params = aliasedMatch.params;
+      return _createRoute(aliasedRecord, location)
+    }
+    return _createRoute(null, location)
+  }
+
+  function _createRoute (
+    record,
+    location,
+    redirectedFrom
+  ) {
+    if (record && record.redirect) {
+      return redirect(record, redirectedFrom || location)
+    }
+    if (record && record.matchAs) {
+      return alias(record, location, record.matchAs)
+    }
+    return createRoute(record, location, redirectedFrom, router)
+  }
+
+  return {
+    match: match,
+    addRoutes: addRoutes
+  }
+}
+
+function matchRoute (
+  regex,
+  path,
+  params
+) {
+  var m = path.match(regex);
+
+  if (!m) {
+    return false
+  } else if (!params) {
+    return true
+  }
+
+  for (var i = 1, len = m.length; i < len; ++i) {
+    var key = regex.keys[i - 1];
+    var val = typeof m[i] === 'string' ? decodeURIComponent(m[i]) : m[i];
+    if (key) {
+      // Fix #1994: using * with props: true generates a param named 0
+      params[key.name || 'pathMatch'] = val;
+    }
+  }
+
+  return true
+}
+
+function resolveRecordPath (path, record) {
+  return resolvePath(path, record.parent ? record.parent.path : '/', true)
+}
+
+/*  */
+
+var positionStore = Object.create(null);
+
+function setupScroll () {
+  // Fix for #1585 for Firefox
+  // Fix for #2195 Add optional third attribute to workaround a bug in safari https://bugs.webkit.org/show_bug.cgi?id=182678
+  window.history.replaceState({ key: getStateKey() }, '', window.location.href.replace(window.location.origin, ''));
+  window.addEventListener('popstate', function (e) {
+    saveScrollPosition();
+    if (e.state && e.state.key) {
+      setStateKey(e.state.key);
+    }
+  });
+}
+
+function handleScroll (
+  router,
+  to,
+  from,
+  isPop
+) {
+  if (!router.app) {
+    return
+  }
+
+  var behavior = router.options.scrollBehavior;
+  if (!behavior) {
+    return
+  }
+
+  {
+    assert(typeof behavior === 'function', "scrollBehavior must be a function");
+  }
+
+  // wait until re-render finishes before scrolling
+  router.app.$nextTick(function () {
+    var position = getScrollPosition();
+    var shouldScroll = behavior.call(router, to, from, isPop ? position : null);
+
+    if (!shouldScroll) {
+      return
+    }
+
+    if (typeof shouldScroll.then === 'function') {
+      shouldScroll.then(function (shouldScroll) {
+        scrollToPosition((shouldScroll), position);
+      }).catch(function (err) {
+        {
+          assert(false, err.toString());
+        }
+      });
+    } else {
+      scrollToPosition(shouldScroll, position);
+    }
+  });
+}
+
+function saveScrollPosition () {
+  var key = getStateKey();
+  if (key) {
+    positionStore[key] = {
+      x: window.pageXOffset,
+      y: window.pageYOffset
+    };
+  }
+}
+
+function getScrollPosition () {
+  var key = getStateKey();
+  if (key) {
+    return positionStore[key]
+  }
+}
+
+function getElementPosition (el, offset) {
+  var docEl = document.documentElement;
+  var docRect = docEl.getBoundingClientRect();
+  var elRect = el.getBoundingClientRect();
+  return {
+    x: elRect.left - docRect.left - offset.x,
+    y: elRect.top - docRect.top - offset.y
+  }
+}
+
+function isValidPosition (obj) {
+  return isNumber(obj.x) || isNumber(obj.y)
+}
+
+function normalizePosition (obj) {
+  return {
+    x: isNumber(obj.x) ? obj.x : window.pageXOffset,
+    y: isNumber(obj.y) ? obj.y : window.pageYOffset
+  }
+}
+
+function normalizeOffset (obj) {
+  return {
+    x: isNumber(obj.x) ? obj.x : 0,
+    y: isNumber(obj.y) ? obj.y : 0
+  }
+}
+
+function isNumber (v) {
+  return typeof v === 'number'
+}
+
+function scrollToPosition (shouldScroll, position) {
+  var isObject = typeof shouldScroll === 'object';
+  if (isObject && typeof shouldScroll.selector === 'string') {
+    var el = document.querySelector(shouldScroll.selector);
+    if (el) {
+      var offset = shouldScroll.offset && typeof shouldScroll.offset === 'object' ? shouldScroll.offset : {};
+      offset = normalizeOffset(offset);
+      position = getElementPosition(el, offset);
+    } else if (isValidPosition(shouldScroll)) {
+      position = normalizePosition(shouldScroll);
+    }
+  } else if (isObject && isValidPosition(shouldScroll)) {
+    position = normalizePosition(shouldScroll);
+  }
+
+  if (position) {
+    window.scrollTo(position.x, position.y);
+  }
+}
+
+/*  */
+
+var supportsPushState = inBrowser && (function () {
+  var ua = window.navigator.userAgent;
+
+  if (
+    (ua.indexOf('Android 2.') !== -1 || ua.indexOf('Android 4.0') !== -1) &&
+    ua.indexOf('Mobile Safari') !== -1 &&
+    ua.indexOf('Chrome') === -1 &&
+    ua.indexOf('Windows Phone') === -1
+  ) {
+    return false
+  }
+
+  return window.history && 'pushState' in window.history
+})();
+
+// use User Timing api (if present) for more accurate key precision
+var Time = inBrowser && window.performance && window.performance.now
+  ? window.performance
+  : Date;
+
+var _key = genKey();
+
+function genKey () {
+  return Time.now().toFixed(3)
+}
+
+function getStateKey () {
+  return _key
+}
+
+function setStateKey (key) {
+  _key = key;
+}
+
+function pushState (url, replace) {
+  saveScrollPosition();
+  // try...catch the pushState call to get around Safari
+  // DOM Exception 18 where it limits to 100 pushState calls
+  var history = window.history;
+  try {
+    if (replace) {
+      history.replaceState({ key: _key }, '', url);
+    } else {
+      _key = genKey();
+      history.pushState({ key: _key }, '', url);
+    }
+  } catch (e) {
+    window.location[replace ? 'replace' : 'assign'](url);
+  }
+}
+
+function replaceState (url) {
+  pushState(url, true);
+}
+
+/*  */
+
+function runQueue (queue, fn, cb) {
+  var step = function (index) {
+    if (index >= queue.length) {
+      cb();
+    } else {
+      if (queue[index]) {
+        fn(queue[index], function () {
+          step(index + 1);
+        });
+      } else {
+        step(index + 1);
+      }
+    }
+  };
+  step(0);
+}
+
+/*  */
+
+function resolveAsyncComponents (matched) {
+  return function (to, from, next) {
+    var hasAsync = false;
+    var pending = 0;
+    var error = null;
+
+    flatMapComponents(matched, function (def, _, match, key) {
+      // if it's a function and doesn't have cid attached,
+      // assume it's an async component resolve function.
+      // we are not using Vue's default async resolving mechanism because
+      // we want to halt the navigation until the incoming component has been
+      // resolved.
+      if (typeof def === 'function' && def.cid === undefined) {
+        hasAsync = true;
+        pending++;
+
+        var resolve = once(function (resolvedDef) {
+          if (isESModule(resolvedDef)) {
+            resolvedDef = resolvedDef.default;
+          }
+          // save resolved on async factory in case it's used elsewhere
+          def.resolved = typeof resolvedDef === 'function'
+            ? resolvedDef
+            : _Vue.extend(resolvedDef);
+          match.components[key] = resolvedDef;
+          pending--;
+          if (pending <= 0) {
+            next();
+          }
+        });
+
+        var reject = once(function (reason) {
+          var msg = "Failed to resolve async component " + key + ": " + reason;
+          "development" !== 'production' && warn(false, msg);
+          if (!error) {
+            error = isError(reason)
+              ? reason
+              : new Error(msg);
+            next(error);
+          }
+        });
+
+        var res;
+        try {
+          res = def(resolve, reject);
+        } catch (e) {
+          reject(e);
+        }
+        if (res) {
+          if (typeof res.then === 'function') {
+            res.then(resolve, reject);
+          } else {
+            // new syntax in Vue 2.3
+            var comp = res.component;
+            if (comp && typeof comp.then === 'function') {
+              comp.then(resolve, reject);
+            }
+          }
+        }
+      }
+    });
+
+    if (!hasAsync) { next(); }
+  }
+}
+
+function flatMapComponents (
+  matched,
+  fn
+) {
+  return flatten(matched.map(function (m) {
+    return Object.keys(m.components).map(function (key) { return fn(
+      m.components[key],
+      m.instances[key],
+      m, key
+    ); })
+  }))
+}
+
+function flatten (arr) {
+  return Array.prototype.concat.apply([], arr)
+}
+
+var hasSymbol =
+  typeof Symbol === 'function' &&
+  typeof Symbol.toStringTag === 'symbol';
+
+function isESModule (obj) {
+  return obj.__esModule || (hasSymbol && obj[Symbol.toStringTag] === 'Module')
+}
+
+// in Webpack 2, require.ensure now also returns a Promise
+// so the resolve/reject functions may get called an extra time
+// if the user uses an arrow function shorthand that happens to
+// return that Promise.
+function once (fn) {
+  var called = false;
+  return function () {
+    var args = [], len = arguments.length;
+    while ( len-- ) args[ len ] = arguments[ len ];
+
+    if (called) { return }
+    called = true;
+    return fn.apply(this, args)
+  }
+}
+
+/*  */
+
+var History = function History (router, base) {
+  this.router = router;
+  this.base = normalizeBase(base);
+  // start with a route object that stands for "nowhere"
+  this.current = START;
+  this.pending = null;
+  this.ready = false;
+  this.readyCbs = [];
+  this.readyErrorCbs = [];
+  this.errorCbs = [];
+};
+
+History.prototype.listen = function listen (cb) {
+  this.cb = cb;
+};
+
+History.prototype.onReady = function onReady (cb, errorCb) {
+  if (this.ready) {
+    cb();
+  } else {
+    this.readyCbs.push(cb);
+    if (errorCb) {
+      this.readyErrorCbs.push(errorCb);
+    }
+  }
+};
+
+History.prototype.onError = function onError (errorCb) {
+  this.errorCbs.push(errorCb);
+};
+
+History.prototype.transitionTo = function transitionTo (location, onComplete, onAbort) {
+    var this$1 = this;
+
+  var route = this.router.match(location, this.current);
+  this.confirmTransition(route, function () {
+    this$1.updateRoute(route);
+    onComplete && onComplete(route);
+    this$1.ensureURL();
+
+    // fire ready cbs once
+    if (!this$1.ready) {
+      this$1.ready = true;
+      this$1.readyCbs.forEach(function (cb) { cb(route); });
+    }
+  }, function (err) {
+    if (onAbort) {
+      onAbort(err);
+    }
+    if (err && !this$1.ready) {
+      this$1.ready = true;
+      this$1.readyErrorCbs.forEach(function (cb) { cb(err); });
+    }
+  });
+};
+
+History.prototype.confirmTransition = function confirmTransition (route, onComplete, onAbort) {
+    var this$1 = this;
+
+  var current = this.current;
+  var abort = function (err) {
+    if (isError(err)) {
+      if (this$1.errorCbs.length) {
+        this$1.errorCbs.forEach(function (cb) { cb(err); });
+      } else {
+        warn(false, 'uncaught error during route navigation:');
+        console.error(err);
+      }
+    }
+    onAbort && onAbort(err);
+  };
+  if (
+    isSameRoute(route, current) &&
+    // in the case the route map has been dynamically appended to
+    route.matched.length === current.matched.length
+  ) {
+    this.ensureURL();
+    return abort()
+  }
+
+  var ref = resolveQueue(this.current.matched, route.matched);
+    var updated = ref.updated;
+    var deactivated = ref.deactivated;
+    var activated = ref.activated;
+
+  var queue = [].concat(
+    // in-component leave guards
+    extractLeaveGuards(deactivated),
+    // global before hooks
+    this.router.beforeHooks,
+    // in-component update hooks
+    extractUpdateHooks(updated),
+    // in-config enter guards
+    activated.map(function (m) { return m.beforeEnter; }),
+    // async components
+    resolveAsyncComponents(activated)
+  );
+
+  this.pending = route;
+  var iterator = function (hook, next) {
+    if (this$1.pending !== route) {
+      return abort()
+    }
+    try {
+      hook(route, current, function (to) {
+        if (to === false || isError(to)) {
+          // next(false) -> abort navigation, ensure current URL
+          this$1.ensureURL(true);
+          abort(to);
+        } else if (
+          typeof to === 'string' ||
+          (typeof to === 'object' && (
+            typeof to.path === 'string' ||
+            typeof to.name === 'string'
+          ))
+        ) {
+          // next('/') or next({ path: '/' }) -> redirect
+          abort();
+          if (typeof to === 'object' && to.replace) {
+            this$1.replace(to);
+          } else {
+            this$1.push(to);
+          }
+        } else {
+          // confirm transition and pass on the value
+          next(to);
+        }
+      });
+    } catch (e) {
+      abort(e);
+    }
+  };
+
+  runQueue(queue, iterator, function () {
+    var postEnterCbs = [];
+    var isValid = function () { return this$1.current === route; };
+    // wait until async components are resolved before
+    // extracting in-component enter guards
+    var enterGuards = extractEnterGuards(activated, postEnterCbs, isValid);
+    var queue = enterGuards.concat(this$1.router.resolveHooks);
+    runQueue(queue, iterator, function () {
+      if (this$1.pending !== route) {
+        return abort()
+      }
+      this$1.pending = null;
+      onComplete(route);
+      if (this$1.router.app) {
+        this$1.router.app.$nextTick(function () {
+          postEnterCbs.forEach(function (cb) { cb(); });
+        });
+      }
+    });
+  });
+};
+
+History.prototype.updateRoute = function updateRoute (route) {
+  var prev = this.current;
+  this.current = route;
+  this.cb && this.cb(route);
+  this.router.afterHooks.forEach(function (hook) {
+    hook && hook(route, prev);
+  });
+};
+
+function normalizeBase (base) {
+  if (!base) {
+    if (inBrowser) {
+      // respect <base> tag
+      var baseEl = document.querySelector('base');
+      base = (baseEl && baseEl.getAttribute('href')) || '/';
+      // strip full URL origin
+      base = base.replace(/^https?:\/\/[^\/]+/, '');
+    } else {
+      base = '/';
+    }
+  }
+  // make sure there's the starting slash
+  if (base.charAt(0) !== '/') {
+    base = '/' + base;
+  }
+  // remove trailing slash
+  return base.replace(/\/$/, '')
+}
+
+function resolveQueue (
+  current,
+  next
+) {
+  var i;
+  var max = Math.max(current.length, next.length);
+  for (i = 0; i < max; i++) {
+    if (current[i] !== next[i]) {
+      break
+    }
+  }
+  return {
+    updated: next.slice(0, i),
+    activated: next.slice(i),
+    deactivated: current.slice(i)
+  }
+}
+
+function extractGuards (
+  records,
+  name,
+  bind,
+  reverse
+) {
+  var guards = flatMapComponents(records, function (def, instance, match, key) {
+    var guard = extractGuard(def, name);
+    if (guard) {
+      return Array.isArray(guard)
+        ? guard.map(function (guard) { return bind(guard, instance, match, key); })
+        : bind(guard, instance, match, key)
+    }
+  });
+  return flatten(reverse ? guards.reverse() : guards)
+}
+
+function extractGuard (
+  def,
+  key
+) {
+  if (typeof def !== 'function') {
+    // extend now so that global mixins are applied.
+    def = _Vue.extend(def);
+  }
+  return def.options[key]
+}
+
+function extractLeaveGuards (deactivated) {
+  return extractGuards(deactivated, 'beforeRouteLeave', bindGuard, true)
+}
+
+function extractUpdateHooks (updated) {
+  return extractGuards(updated, 'beforeRouteUpdate', bindGuard)
+}
+
+function bindGuard (guard, instance) {
+  if (instance) {
+    return function boundRouteGuard () {
+      return guard.apply(instance, arguments)
+    }
+  }
+}
+
+function extractEnterGuards (
+  activated,
+  cbs,
+  isValid
+) {
+  return extractGuards(activated, 'beforeRouteEnter', function (guard, _, match, key) {
+    return bindEnterGuard(guard, match, key, cbs, isValid)
+  })
+}
+
+function bindEnterGuard (
+  guard,
+  match,
+  key,
+  cbs,
+  isValid
+) {
+  return function routeEnterGuard (to, from, next) {
+    return guard(to, from, function (cb) {
+      next(cb);
+      if (typeof cb === 'function') {
+        cbs.push(function () {
+          // #750
+          // if a router-view is wrapped with an out-in transition,
+          // the instance may not have been registered at this time.
+          // we will need to poll for registration until current route
+          // is no longer valid.
+          poll(cb, match.instances, key, isValid);
+        });
+      }
+    })
+  }
+}
+
+function poll (
+  cb, // somehow flow cannot infer this is a function
+  instances,
+  key,
+  isValid
+) {
+  if (
+    instances[key] &&
+    !instances[key]._isBeingDestroyed // do not reuse being destroyed instance
+  ) {
+    cb(instances[key]);
+  } else if (isValid()) {
+    setTimeout(function () {
+      poll(cb, instances, key, isValid);
+    }, 16);
+  }
+}
+
+/*  */
+
+var HTML5History = (function (History$$1) {
+  function HTML5History (router, base) {
+    var this$1 = this;
+
+    History$$1.call(this, router, base);
+
+    var expectScroll = router.options.scrollBehavior;
+    var supportsScroll = supportsPushState && expectScroll;
+
+    if (supportsScroll) {
+      setupScroll();
+    }
+
+    var initLocation = getLocation(this.base);
+    window.addEventListener('popstate', function (e) {
+      var current = this$1.current;
+
+      // Avoiding first `popstate` event dispatched in some browsers but first
+      // history route not updated since async guard at the same time.
+      var location = getLocation(this$1.base);
+      if (this$1.current === START && location === initLocation) {
+        return
+      }
+
+      this$1.transitionTo(location, function (route) {
+        if (supportsScroll) {
+          handleScroll(router, route, current, true);
+        }
+      });
+    });
+  }
+
+  if ( History$$1 ) HTML5History.__proto__ = History$$1;
+  HTML5History.prototype = Object.create( History$$1 && History$$1.prototype );
+  HTML5History.prototype.constructor = HTML5History;
+
+  HTML5History.prototype.go = function go (n) {
+    window.history.go(n);
+  };
+
+  HTML5History.prototype.push = function push (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    var ref = this;
+    var fromRoute = ref.current;
+    this.transitionTo(location, function (route) {
+      pushState(cleanPath(this$1.base + route.fullPath));
+      handleScroll(this$1.router, route, fromRoute, false);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  HTML5History.prototype.replace = function replace (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    var ref = this;
+    var fromRoute = ref.current;
+    this.transitionTo(location, function (route) {
+      replaceState(cleanPath(this$1.base + route.fullPath));
+      handleScroll(this$1.router, route, fromRoute, false);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  HTML5History.prototype.ensureURL = function ensureURL (push) {
+    if (getLocation(this.base) !== this.current.fullPath) {
+      var current = cleanPath(this.base + this.current.fullPath);
+      push ? pushState(current) : replaceState(current);
+    }
+  };
+
+  HTML5History.prototype.getCurrentLocation = function getCurrentLocation () {
+    return getLocation(this.base)
+  };
+
+  return HTML5History;
+}(History));
+
+function getLocation (base) {
+  var path = decodeURI(window.location.pathname);
+  if (base && path.indexOf(base) === 0) {
+    path = path.slice(base.length);
+  }
+  return (path || '/') + window.location.search + window.location.hash
+}
+
+/*  */
+
+var HashHistory = (function (History$$1) {
+  function HashHistory (router, base, fallback) {
+    History$$1.call(this, router, base);
+    // check history fallback deeplinking
+    if (fallback && checkFallback(this.base)) {
+      return
+    }
+    ensureSlash();
+  }
+
+  if ( History$$1 ) HashHistory.__proto__ = History$$1;
+  HashHistory.prototype = Object.create( History$$1 && History$$1.prototype );
+  HashHistory.prototype.constructor = HashHistory;
+
+  // this is delayed until the app mounts
+  // to avoid the hashchange listener being fired too early
+  HashHistory.prototype.setupListeners = function setupListeners () {
+    var this$1 = this;
+
+    var router = this.router;
+    var expectScroll = router.options.scrollBehavior;
+    var supportsScroll = supportsPushState && expectScroll;
+
+    if (supportsScroll) {
+      setupScroll();
+    }
+
+    window.addEventListener(supportsPushState ? 'popstate' : 'hashchange', function () {
+      var current = this$1.current;
+      if (!ensureSlash()) {
+        return
+      }
+      this$1.transitionTo(getHash(), function (route) {
+        if (supportsScroll) {
+          handleScroll(this$1.router, route, current, true);
+        }
+        if (!supportsPushState) {
+          replaceHash(route.fullPath);
+        }
+      });
+    });
+  };
+
+  HashHistory.prototype.push = function push (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    var ref = this;
+    var fromRoute = ref.current;
+    this.transitionTo(location, function (route) {
+      pushHash(route.fullPath);
+      handleScroll(this$1.router, route, fromRoute, false);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  HashHistory.prototype.replace = function replace (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    var ref = this;
+    var fromRoute = ref.current;
+    this.transitionTo(location, function (route) {
+      replaceHash(route.fullPath);
+      handleScroll(this$1.router, route, fromRoute, false);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  HashHistory.prototype.go = function go (n) {
+    window.history.go(n);
+  };
+
+  HashHistory.prototype.ensureURL = function ensureURL (push) {
+    var current = this.current.fullPath;
+    if (getHash() !== current) {
+      push ? pushHash(current) : replaceHash(current);
+    }
+  };
+
+  HashHistory.prototype.getCurrentLocation = function getCurrentLocation () {
+    return getHash()
+  };
+
+  return HashHistory;
+}(History));
+
+function checkFallback (base) {
+  var location = getLocation(base);
+  if (!/^\/#/.test(location)) {
+    window.location.replace(
+      cleanPath(base + '/#' + location)
+    );
+    return true
+  }
+}
+
+function ensureSlash () {
+  var path = getHash();
+  if (path.charAt(0) === '/') {
+    return true
+  }
+  replaceHash('/' + path);
+  return false
+}
+
+function getHash () {
+  // We can't use window.location.hash here because it's not
+  // consistent across browsers - Firefox will pre-decode it!
+  var href = window.location.href;
+  var index = href.indexOf('#');
+  return index === -1 ? '' : decodeURI(href.slice(index + 1))
+}
+
+function getUrl (path) {
+  var href = window.location.href;
+  var i = href.indexOf('#');
+  var base = i >= 0 ? href.slice(0, i) : href;
+  return (base + "#" + path)
+}
+
+function pushHash (path) {
+  if (supportsPushState) {
+    pushState(getUrl(path));
+  } else {
+    window.location.hash = path;
+  }
+}
+
+function replaceHash (path) {
+  if (supportsPushState) {
+    replaceState(getUrl(path));
+  } else {
+    window.location.replace(getUrl(path));
+  }
+}
+
+/*  */
+
+var AbstractHistory = (function (History$$1) {
+  function AbstractHistory (router, base) {
+    History$$1.call(this, router, base);
+    this.stack = [];
+    this.index = -1;
+  }
+
+  if ( History$$1 ) AbstractHistory.__proto__ = History$$1;
+  AbstractHistory.prototype = Object.create( History$$1 && History$$1.prototype );
+  AbstractHistory.prototype.constructor = AbstractHistory;
+
+  AbstractHistory.prototype.push = function push (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    this.transitionTo(location, function (route) {
+      this$1.stack = this$1.stack.slice(0, this$1.index + 1).concat(route);
+      this$1.index++;
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  AbstractHistory.prototype.replace = function replace (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    this.transitionTo(location, function (route) {
+      this$1.stack = this$1.stack.slice(0, this$1.index).concat(route);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  AbstractHistory.prototype.go = function go (n) {
+    var this$1 = this;
+
+    var targetIndex = this.index + n;
+    if (targetIndex < 0 || targetIndex >= this.stack.length) {
+      return
+    }
+    var route = this.stack[targetIndex];
+    this.confirmTransition(route, function () {
+      this$1.index = targetIndex;
+      this$1.updateRoute(route);
+    });
+  };
+
+  AbstractHistory.prototype.getCurrentLocation = function getCurrentLocation () {
+    var current = this.stack[this.stack.length - 1];
+    return current ? current.fullPath : '/'
+  };
+
+  AbstractHistory.prototype.ensureURL = function ensureURL () {
+    // noop
+  };
+
+  return AbstractHistory;
+}(History));
+
+/*  */
+
+
+
+var VueRouter = function VueRouter (options) {
+  if ( options === void 0 ) options = {};
+
+  this.app = null;
+  this.apps = [];
+  this.options = options;
+  this.beforeHooks = [];
+  this.resolveHooks = [];
+  this.afterHooks = [];
+  this.matcher = createMatcher(options.routes || [], this);
+
+  var mode = options.mode || 'hash';
+  this.fallback = mode === 'history' && !supportsPushState && options.fallback !== false;
+  if (this.fallback) {
+    mode = 'hash';
+  }
+  if (!inBrowser) {
+    mode = 'abstract';
+  }
+  this.mode = mode;
+
+  switch (mode) {
+    case 'history':
+      this.history = new HTML5History(this, options.base);
+      break
+    case 'hash':
+      this.history = new HashHistory(this, options.base, this.fallback);
+      break
+    case 'abstract':
+      this.history = new AbstractHistory(this, options.base);
+      break
+    default:
+      {
+        assert(false, ("invalid mode: " + mode));
+      }
+  }
+};
+
+var prototypeAccessors = { currentRoute: { configurable: true } };
+
+VueRouter.prototype.match = function match (
+  raw,
+  current,
+  redirectedFrom
+) {
+  return this.matcher.match(raw, current, redirectedFrom)
+};
+
+prototypeAccessors.currentRoute.get = function () {
+  return this.history && this.history.current
+};
+
+VueRouter.prototype.init = function init (app /* Vue component instance */) {
+    var this$1 = this;
+
+  "development" !== 'production' && assert(
+    install.installed,
+    "not installed. Make sure to call `Vue.use(VueRouter)` " +
+    "before creating root instance."
+  );
+
+  this.apps.push(app);
+
+  // main app already initialized.
+  if (this.app) {
+    return
+  }
+
+  this.app = app;
+
+  var history = this.history;
+
+  if (history instanceof HTML5History) {
+    history.transitionTo(history.getCurrentLocation());
+  } else if (history instanceof HashHistory) {
+    var setupHashListener = function () {
+      history.setupListeners();
+    };
+    history.transitionTo(
+      history.getCurrentLocation(),
+      setupHashListener,
+      setupHashListener
+    );
+  }
+
+  history.listen(function (route) {
+    this$1.apps.forEach(function (app) {
+      app._route = route;
+    });
+  });
+};
+
+VueRouter.prototype.beforeEach = function beforeEach (fn) {
+  return registerHook(this.beforeHooks, fn)
+};
+
+VueRouter.prototype.beforeResolve = function beforeResolve (fn) {
+  return registerHook(this.resolveHooks, fn)
+};
+
+VueRouter.prototype.afterEach = function afterEach (fn) {
+  return registerHook(this.afterHooks, fn)
+};
+
+VueRouter.prototype.onReady = function onReady (cb, errorCb) {
+  this.history.onReady(cb, errorCb);
+};
+
+VueRouter.prototype.onError = function onError (errorCb) {
+  this.history.onError(errorCb);
+};
+
+VueRouter.prototype.push = function push (location, onComplete, onAbort) {
+  this.history.push(location, onComplete, onAbort);
+};
+
+VueRouter.prototype.replace = function replace (location, onComplete, onAbort) {
+  this.history.replace(location, onComplete, onAbort);
+};
+
+VueRouter.prototype.go = function go (n) {
+  this.history.go(n);
+};
+
+VueRouter.prototype.back = function back () {
+  this.go(-1);
+};
+
+VueRouter.prototype.forward = function forward () {
+  this.go(1);
+};
+
+VueRouter.prototype.getMatchedComponents = function getMatchedComponents (to) {
+  var route = to
+    ? to.matched
+      ? to
+      : this.resolve(to).route
+    : this.currentRoute;
+  if (!route) {
+    return []
+  }
+  return [].concat.apply([], route.matched.map(function (m) {
+    return Object.keys(m.components).map(function (key) {
+      return m.components[key]
+    })
+  }))
+};
+
+VueRouter.prototype.resolve = function resolve (
+  to,
+  current,
+  append
+) {
+  var location = normalizeLocation(
+    to,
+    current || this.history.current,
+    append,
+    this
+  );
+  var route = this.match(location, current);
+  var fullPath = route.redirectedFrom || route.fullPath;
+  var base = this.history.base;
+  var href = createHref(base, fullPath, this.mode);
+  return {
+    location: location,
+    route: route,
+    href: href,
+    // for backwards compat
+    normalizedTo: location,
+    resolved: route
+  }
+};
+
+VueRouter.prototype.addRoutes = function addRoutes (routes) {
+  this.matcher.addRoutes(routes);
+  if (this.history.current !== START) {
+    this.history.transitionTo(this.history.getCurrentLocation());
+  }
+};
+
+Object.defineProperties( VueRouter.prototype, prototypeAccessors );
+
+function registerHook (list, fn) {
+  list.push(fn);
+  return function () {
+    var i = list.indexOf(fn);
+    if (i > -1) { list.splice(i, 1); }
+  }
+}
+
+function createHref (base, fullPath, mode) {
+  var path = mode === 'hash' ? '#' + fullPath : fullPath;
+  return base ? cleanPath(base + '/' + path) : path
+}
+
+VueRouter.install = install;
+VueRouter.version = '3.0.2';
+
+if (inBrowser && window.Vue) {
+  window.Vue.use(VueRouter);
+}
+
+return VueRouter;
+
+})));
diff --git a/node_modules/vue-router/dist/vue-router.min.js b/node_modules/vue-router/dist/vue-router.min.js
new file mode 100644
index 0000000..89b9a45
--- /dev/null
+++ b/node_modules/vue-router/dist/vue-router.min.js
@@ -0,0 +1,6 @@
+/*!
+  * vue-router v3.0.2
+  * (c) 2018 Evan You
+  * @license MIT
+  */
+!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.VueRouter=e()}(this,function(){"use strict";function l(t){return-1<Object.prototype.toString.call(t).indexOf("Error")}function k(t,e){for(var r in e)t[r]=e[r];return t}var i={name:"RouterView",functional:!0,props:{name:{type:String,default:"default"}},render:function(t,e){var r=e.props,n=e.children,o=e.parent,i=e.data;i.routerView=!0;for(var a=o.$createElement,u=r.name,c=o.$route,s=o._routerViewCache||(o._routerViewCache={}),p=0,f=!1;o&&o._routerRoot!==o;)o.$vnode&&o.$vnode.data.routerView&&p++,o._inactive&&(f=!0),o=o.$parent;if(i.routerViewDepth=p,f)return a(s[u],i,n);var h=c.matched[p];if(!h)return s[u]=null,a();var l=s[u]=h.components[u];i.registerRouteInstance=function(t,e){var r=h.instances[u];(e&&r!==t||!e&&r===t)&&(h.instances[u]=e)},(i.hook||(i.hook={})).prepatch=function(t,e){h.instances[u]=e.componentInstance};var d=i.props=function(t,e){switch(typeof e){case"undefined":return;case"object":return e;case"function":return e(t);case"boolean":return e?t.params:void 0}}(c,h.props&&h.props[u]);if(d){d=i.props=k({},d);var y=i.attrs=i.attrs||{};for(var v in d)l.props&&v in l.props||(y[v]=d[v],delete d[v])}return a(l,i,n)}};var e=/[!'()*]/g,r=function(t){return"%"+t.charCodeAt(0).toString(16)},n=/%2C/g,o=function(t){return encodeURIComponent(t).replace(e,r).replace(n,",")},a=decodeURIComponent;function h(t){var o={};return(t=t.trim().replace(/^(\?|#|&)/,""))&&t.split("&").forEach(function(t){var e=t.replace(/\+/g," ").split("="),r=a(e.shift()),n=0<e.length?a(e.join("=")):null;void 0===o[r]?o[r]=n:Array.isArray(o[r])?o[r].push(n):o[r]=[o[r],n]}),o}function u(n){var t=n?Object.keys(n).map(function(e){var t=n[e];if(void 0===t)return"";if(null===t)return o(e);if(Array.isArray(t)){var r=[];return t.forEach(function(t){void 0!==t&&(null===t?r.push(o(e)):r.push(o(e)+"="+o(t)))}),r.join("&")}return o(e)+"="+o(t)}).filter(function(t){return 0<t.length}).join("&"):null;return t?"?"+t:""}var R=/\/?$/;function E(t,e,r,n){var o=n&&n.options.stringifyQuery,i=e.query||{};try{i=c(i)}catch(t){}var a={name:e.name||t&&t.name,meta:t&&t.meta||{},path:e.path||"/",hash:e.hash||"",query:i,params:e.params||{},fullPath:p(e,o),matched:t?function(t){var e=[];for(;t;)e.unshift(t),t=t.parent;return e}(t):[]};return r&&(a.redirectedFrom=p(r,o)),Object.freeze(a)}function c(t){if(Array.isArray(t))return t.map(c);if(t&&"object"==typeof t){var e={};for(var r in t)e[r]=c(t[r]);return e}return t}var s=E(null,{path:"/"});function p(t,e){var r=t.path,n=t.query;void 0===n&&(n={});var o=t.hash;return void 0===o&&(o=""),(r||"/")+(e||u)(n)+o}function O(t,e){return e===s?t===e:!!e&&(t.path&&e.path?t.path.replace(R,"")===e.path.replace(R,"")&&t.hash===e.hash&&f(t.query,e.query):!(!t.name||!e.name)&&(t.name===e.name&&t.hash===e.hash&&f(t.query,e.query)&&f(t.params,e.params)))}function f(n,o){if(void 0===n&&(n={}),void 0===o&&(o={}),!n||!o)return n===o;var t=Object.keys(n),e=Object.keys(o);return t.length===e.length&&t.every(function(t){var e=n[t],r=o[t];return"object"==typeof e&&"object"==typeof r?f(e,r):String(e)===String(r)})}var d,t=[String,Object],y=[String,Array],v={name:"RouterLink",props:{to:{type:t,required:!0},tag:{type:String,default:"a"},exact:Boolean,append:Boolean,replace:Boolean,activeClass:String,exactActiveClass:String,event:{type:y,default:"click"}},render:function(t){var e,r,n=this,o=this.$router,i=this.$route,a=o.resolve(this.to,i,this.append),u=a.location,c=a.route,s=a.href,p={},f=o.options.linkActiveClass,h=o.options.linkExactActiveClass,l=null==f?"router-link-active":f,d=null==h?"router-link-exact-active":h,y=null==this.activeClass?l:this.activeClass,v=null==this.exactActiveClass?d:this.exactActiveClass,m=u.path?E(null,u,null,o):c;p[v]=O(i,m),p[y]=this.exact?p[v]:(r=m,0===(e=i).path.replace(R,"/").indexOf(r.path.replace(R,"/"))&&(!r.hash||e.hash===r.hash)&&function(t,e){for(var r in e)if(!(r in t))return!1;return!0}(e.query,r.query));var g=function(t){C(t)&&(n.replace?o.replace(u):o.push(u))},b={click:C};Array.isArray(this.event)?this.event.forEach(function(t){b[t]=g}):b[this.event]=g;var w={class:p};if("a"===this.tag)w.on=b,w.attrs={href:s};else{var x=function t(e){if(e)for(var r,n=0;n<e.length;n++){if("a"===(r=e[n]).tag)return r;if(r.children&&(r=t(r.children)))return r}}(this.$slots.default);if(x)x.isStatic=!1,(x.data=k({},x.data)).on=b,(x.data.attrs=k({},x.data.attrs)).href=s;else w.on=b}return t(this.tag,w,this.$slots.default)}};function C(t){if(!(t.metaKey||t.altKey||t.ctrlKey||t.shiftKey||t.defaultPrevented||void 0!==t.button&&0!==t.button)){if(t.currentTarget&&t.currentTarget.getAttribute){var e=t.currentTarget.getAttribute("target");if(/\b_blank\b/i.test(e))return}return t.preventDefault&&t.preventDefault(),!0}}var m="undefined"!=typeof window;function g(t,e,r){var n=t.charAt(0);if("/"===n)return t;if("?"===n||"#"===n)return e+t;var o=e.split("/");r&&o[o.length-1]||o.pop();for(var i=t.replace(/^\//,"").split("/"),a=0;a<i.length;a++){var u=i[a];".."===u?o.pop():"."!==u&&o.push(u)}return""!==o[0]&&o.unshift(""),o.join("/")}function b(t){return t.replace(/\/\//g,"/")}var w=Array.isArray||function(t){return"[object Array]"==Object.prototype.toString.call(t)},x=V,j=$,A=function(t,e){return q($(t,e))},_=q,T=M,S=new RegExp(["(\\\\.)","([\\/.])?(?:(?:\\:(\\w+)(?:\\(((?:\\\\.|[^\\\\()])+)\\))?|\\(((?:\\\\.|[^\\\\()])+)\\))([+*?])?|(\\*))"].join("|"),"g");function $(t,e){for(var r,n,o=[],i=0,a=0,u="",c=e&&e.delimiter||"/";null!=(r=S.exec(t));){var s=r[0],p=r[1],f=r.index;if(u+=t.slice(a,f),a=f+s.length,p)u+=p[1];else{var h=t[a],l=r[2],d=r[3],y=r[4],v=r[5],m=r[6],g=r[7];u&&(o.push(u),u="");var b=null!=l&&null!=h&&h!==l,w="+"===m||"*"===m,x="?"===m||"*"===m,k=r[2]||c,R=y||v;o.push({name:d||i++,prefix:l||"",delimiter:k,optional:x,repeat:w,partial:b,asterisk:!!g,pattern:R?(n=R,n.replace(/([=!:$\/()])/g,"\\$1")):g?".*":"[^"+P(k)+"]+?"})}}return a<t.length&&(u+=t.substr(a)),u&&o.push(u),o}function L(t){return encodeURI(t).replace(/[\/?#]/g,function(t){return"%"+t.charCodeAt(0).toString(16).toUpperCase()})}function q(p){for(var f=new Array(p.length),t=0;t<p.length;t++)"object"==typeof p[t]&&(f[t]=new RegExp("^(?:"+p[t].pattern+")$"));return function(t,e){for(var r="",n=t||{},o=(e||{}).pretty?L:encodeURIComponent,i=0;i<p.length;i++){var a=p[i];if("string"!=typeof a){var u,c=n[a.name];if(null==c){if(a.optional){a.partial&&(r+=a.prefix);continue}throw new TypeError('Expected "'+a.name+'" to be defined')}if(w(c)){if(!a.repeat)throw new TypeError('Expected "'+a.name+'" to not repeat, but received `'+JSON.stringify(c)+"`");if(0===c.length){if(a.optional)continue;throw new TypeError('Expected "'+a.name+'" to not be empty')}for(var s=0;s<c.length;s++){if(u=o(c[s]),!f[i].test(u))throw new TypeError('Expected all "'+a.name+'" to match "'+a.pattern+'", but received `'+JSON.stringify(u)+"`");r+=(0===s?a.prefix:a.delimiter)+u}}else{if(u=a.asterisk?encodeURI(c).replace(/[?#]/g,function(t){return"%"+t.charCodeAt(0).toString(16).toUpperCase()}):o(c),!f[i].test(u))throw new TypeError('Expected "'+a.name+'" to match "'+a.pattern+'", but received "'+u+'"');r+=a.prefix+u}}else r+=a}return r}}function P(t){return t.replace(/([.+*?=^!:${}()[\]|\/\\])/g,"\\$1")}function U(t,e){return t.keys=e,t}function I(t){return t.sensitive?"":"i"}function M(t,e,r){w(e)||(r=e||r,e=[]);for(var n=(r=r||{}).strict,o=!1!==r.end,i="",a=0;a<t.length;a++){var u=t[a];if("string"==typeof u)i+=P(u);else{var c=P(u.prefix),s="(?:"+u.pattern+")";e.push(u),u.repeat&&(s+="(?:"+c+s+")*"),i+=s=u.optional?u.partial?c+"("+s+")?":"(?:"+c+"("+s+"))?":c+"("+s+")"}}var p=P(r.delimiter||"/"),f=i.slice(-p.length)===p;return n||(i=(f?i.slice(0,-p.length):i)+"(?:"+p+"(?=$))?"),i+=o?"$":n&&f?"":"(?="+p+"|$)",U(new RegExp("^"+i,I(r)),e)}function V(t,e,r){return w(e)||(r=e||r,e=[]),r=r||{},t instanceof RegExp?function(t,e){var r=t.source.match(/\((?!\?)/g);if(r)for(var n=0;n<r.length;n++)e.push({name:n,prefix:null,delimiter:null,optional:!1,repeat:!1,partial:!1,asterisk:!1,pattern:null});return U(t,e)}(t,e):w(t)?function(t,e,r){for(var n=[],o=0;o<t.length;o++)n.push(V(t[o],e,r).source);return U(new RegExp("(?:"+n.join("|")+")",I(r)),e)}(t,e,r):(n=e,M($(t,o=r),n,o));var n,o}x.parse=j,x.compile=A,x.tokensToFunction=_,x.tokensToRegExp=T;var B=Object.create(null);function H(t,e,r){try{return(B[t]||(B[t]=x.compile(t)))(e||{},{pretty:!0})}catch(t){return""}}function z(t,e,r,n){var o=e||[],i=r||Object.create(null),a=n||Object.create(null);t.forEach(function(t){!function r(n,o,i,a,u,c){var t=a.path;var e=a.name;var s=a.pathToRegexpOptions||{};var p=function(t,e,r){r||(t=t.replace(/\/$/,""));if("/"===t[0])return t;if(null==e)return t;return b(e.path+"/"+t)}(t,u,s.strict);"boolean"==typeof a.caseSensitive&&(s.sensitive=a.caseSensitive);var f={path:p,regex:(h=p,l=s,x(h,[],l)),components:a.components||{default:a.component},instances:{},name:e,parent:u,matchAs:c,redirect:a.redirect,beforeEnter:a.beforeEnter,meta:a.meta||{},props:null==a.props?{}:a.components?a.props:{default:a.props}};var h,l;a.children&&a.children.forEach(function(t){var e=c?b(c+"/"+t.path):void 0;r(n,o,i,t,f,e)});if(void 0!==a.alias){var d=Array.isArray(a.alias)?a.alias:[a.alias];d.forEach(function(t){var e={path:t,children:a.children};r(n,o,i,e,u,f.path||"/")})}o[f.path]||(n.push(f.path),o[f.path]=f);e&&(i[e]||(i[e]=f))}(o,i,a,t)});for(var u=0,c=o.length;u<c;u++)"*"===o[u]&&(o.push(o.splice(u,1)[0]),c--,u--);return{pathList:o,pathMap:i,nameMap:a}}function D(t,e,r,n){var o="string"==typeof t?{path:t}:t;if(o.name||o._normalized)return o;if(!o.path&&o.params&&e){(o=k({},o))._normalized=!0;var i=k(k({},e.params),o.params);if(e.name)o.name=e.name,o.params=i;else if(e.matched.length){var a=e.matched[e.matched.length-1].path;o.path=H(a,i,e.path)}return o}var u=function(t){var e="",r="",n=t.indexOf("#");0<=n&&(e=t.slice(n),t=t.slice(0,n));var o=t.indexOf("?");return 0<=o&&(r=t.slice(o+1),t=t.slice(0,o)),{path:t,query:r,hash:e}}(o.path||""),c=e&&e.path||"/",s=u.path?g(u.path,c,r||o.append):c,p=function(t,e,r){void 0===e&&(e={});var n,o=r||h;try{n=o(t||"")}catch(t){n={}}for(var i in e)n[i]=e[i];return n}(u.query,o.query,n&&n.options.parseQuery),f=o.hash||u.hash;return f&&"#"!==f.charAt(0)&&(f="#"+f),{_normalized:!0,path:s,query:p,hash:f}}function F(t,h){var e=z(t),f=e.pathList,l=e.pathMap,d=e.nameMap;function y(t,e,r){var n=D(t,e,!1,h),o=n.name;if(o){var i=d[o];if(!i)return v(null,n);var a=i.regex.keys.filter(function(t){return!t.optional}).map(function(t){return t.name});if("object"!=typeof n.params&&(n.params={}),e&&"object"==typeof e.params)for(var u in e.params)!(u in n.params)&&-1<a.indexOf(u)&&(n.params[u]=e.params[u]);if(i)return n.path=H(i.path,n.params),v(i,n,r)}else if(n.path){n.params={};for(var c=0;c<f.length;c++){var s=f[c],p=l[s];if(K(p.regex,n.path,n.params))return v(p,n,r)}}return v(null,n)}function n(t,e){var r=t.redirect,n="function"==typeof r?r(E(t,e,null,h)):r;if("string"==typeof n&&(n={path:n}),!n||"object"!=typeof n)return v(null,e);var o,i=n,a=i.name,u=i.path,c=e.query,s=e.hash,p=e.params;if(c=i.hasOwnProperty("query")?i.query:c,s=i.hasOwnProperty("hash")?i.hash:s,p=i.hasOwnProperty("params")?i.params:p,a){d[a];return y({_normalized:!0,name:a,query:c,hash:s,params:p},void 0,e)}if(u){var f=g(u,(o=t).parent?o.parent.path:"/",!0);return y({_normalized:!0,path:H(f,p),query:c,hash:s},void 0,e)}return v(null,e)}function v(t,e,r){return t&&t.redirect?n(t,r||e):t&&t.matchAs?function(t,e,r){var n=y({_normalized:!0,path:H(r,e.params)});if(n){var o=n.matched,i=o[o.length-1];return e.params=n.params,v(i,e)}return v(null,e)}(0,e,t.matchAs):E(t,e,r,h)}return{match:y,addRoutes:function(t){z(t,f,l,d)}}}function K(t,e,r){var n=e.match(t);if(!n)return!1;if(!r)return!0;for(var o=1,i=n.length;o<i;++o){var a=t.keys[o-1],u="string"==typeof n[o]?decodeURIComponent(n[o]):n[o];a&&(r[a.name||"pathMatch"]=u)}return!0}var J=Object.create(null);function N(){window.history.replaceState({key:it()},"",window.location.href.replace(window.location.origin,"")),window.addEventListener("popstate",function(t){var e;X(),t.state&&t.state.key&&(e=t.state.key,nt=e)})}function Q(r,n,o,i){if(r.app){var a=r.options.scrollBehavior;a&&r.app.$nextTick(function(){var e=function(){var t=it();if(t)return J[t]}(),t=a.call(r,n,o,i?e:null);t&&("function"==typeof t.then?t.then(function(t){Z(t,e)}).catch(function(t){}):Z(t,e))})}}function X(){var t=it();t&&(J[t]={x:window.pageXOffset,y:window.pageYOffset})}function Y(t){return G(t.x)||G(t.y)}function W(t){return{x:G(t.x)?t.x:window.pageXOffset,y:G(t.y)?t.y:window.pageYOffset}}function G(t){return"number"==typeof t}function Z(t,e){var r,n,o,i,a,u="object"==typeof t;if(u&&"string"==typeof t.selector){var c=document.querySelector(t.selector);if(c){var s=t.offset&&"object"==typeof t.offset?t.offset:{};s={x:G((a=s).x)?a.x:0,y:G(a.y)?a.y:0},r=c,n=s,o=document.documentElement.getBoundingClientRect(),e={x:(i=r.getBoundingClientRect()).left-o.left-n.x,y:i.top-o.top-n.y}}else Y(t)&&(e=W(t))}else u&&Y(t)&&(e=W(t));e&&window.scrollTo(e.x,e.y)}var tt,et=m&&((-1===(tt=window.navigator.userAgent).indexOf("Android 2.")&&-1===tt.indexOf("Android 4.0")||-1===tt.indexOf("Mobile Safari")||-1!==tt.indexOf("Chrome")||-1!==tt.indexOf("Windows Phone"))&&window.history&&"pushState"in window.history),rt=m&&window.performance&&window.performance.now?window.performance:Date,nt=ot();function ot(){return rt.now().toFixed(3)}function it(){return nt}function at(e,r){X();var t=window.history;try{r?t.replaceState({key:nt},"",e):(nt=ot(),t.pushState({key:nt},"",e))}catch(t){window.location[r?"replace":"assign"](e)}}function ut(t){at(t,!0)}function ct(e,r,n){var o=function(t){t>=e.length?n():e[t]?r(e[t],function(){o(t+1)}):o(t+1)};o(0)}function st(r){return function(t,e,c){var s=!1,p=0,f=null;pt(r,function(r,t,n,o){if("function"==typeof r&&void 0===r.cid){s=!0,p++;var e,i=lt(function(t){var e;((e=t).__esModule||ht&&"Module"===e[Symbol.toStringTag])&&(t=t.default),r.resolved="function"==typeof t?t:d.extend(t),n.components[o]=t,--p<=0&&c()}),a=lt(function(t){var e="Failed to resolve async component "+o+": "+t;f||(f=l(t)?t:new Error(e),c(f))});try{e=r(i,a)}catch(t){a(t)}if(e)if("function"==typeof e.then)e.then(i,a);else{var u=e.component;u&&"function"==typeof u.then&&u.then(i,a)}}}),s||c()}}function pt(t,r){return ft(t.map(function(e){return Object.keys(e.components).map(function(t){return r(e.components[t],e.instances[t],e,t)})}))}function ft(t){return Array.prototype.concat.apply([],t)}var ht="function"==typeof Symbol&&"symbol"==typeof Symbol.toStringTag;function lt(r){var n=!1;return function(){for(var t=[],e=arguments.length;e--;)t[e]=arguments[e];if(!n)return n=!0,r.apply(this,t)}}var dt=function(t,e){this.router=t,this.base=function(t){if(!t)if(m){var e=document.querySelector("base");t=(t=e&&e.getAttribute("href")||"/").replace(/^https?:\/\/[^\/]+/,"")}else t="/";"/"!==t.charAt(0)&&(t="/"+t);return t.replace(/\/$/,"")}(e),this.current=s,this.pending=null,this.ready=!1,this.readyCbs=[],this.readyErrorCbs=[],this.errorCbs=[]};function yt(t,i,a,e){var r=pt(t,function(t,e,r,n){var o=function(t,e){"function"!=typeof t&&(t=d.extend(t));return t.options[e]}(t,i);if(o)return Array.isArray(o)?o.map(function(t){return a(t,e,r,n)}):a(o,e,r,n)});return ft(e?r.reverse():r)}function vt(t,e){if(e)return function(){return t.apply(e,arguments)}}dt.prototype.listen=function(t){this.cb=t},dt.prototype.onReady=function(t,e){this.ready?t():(this.readyCbs.push(t),e&&this.readyErrorCbs.push(e))},dt.prototype.onError=function(t){this.errorCbs.push(t)},dt.prototype.transitionTo=function(t,e,r){var n=this,o=this.router.match(t,this.current);this.confirmTransition(o,function(){n.updateRoute(o),e&&e(o),n.ensureURL(),n.ready||(n.ready=!0,n.readyCbs.forEach(function(t){t(o)}))},function(e){r&&r(e),e&&!n.ready&&(n.ready=!0,n.readyErrorCbs.forEach(function(t){t(e)}))})},dt.prototype.confirmTransition=function(r,e,t){var n=this,o=this.current,i=function(e){l(e)&&(n.errorCbs.length?n.errorCbs.forEach(function(t){t(e)}):console.error(e)),t&&t(e)};if(O(r,o)&&r.matched.length===o.matched.length)return this.ensureURL(),i();var a=function(t,e){var r,n=Math.max(t.length,e.length);for(r=0;r<n&&t[r]===e[r];r++);return{updated:e.slice(0,r),activated:e.slice(r),deactivated:t.slice(r)}}(this.current.matched,r.matched),u=a.updated,c=a.deactivated,f=a.activated,s=[].concat(yt(c,"beforeRouteLeave",vt,!0),this.router.beforeHooks,yt(u,"beforeRouteUpdate",vt),f.map(function(t){return t.beforeEnter}),st(f));this.pending=r;var h=function(t,e){if(n.pending!==r)return i();try{t(r,o,function(t){!1===t||l(t)?(n.ensureURL(!0),i(t)):"string"==typeof t||"object"==typeof t&&("string"==typeof t.path||"string"==typeof t.name)?(i(),"object"==typeof t&&t.replace?n.replace(t):n.push(t)):e(t)})}catch(t){i(t)}};ct(s,h,function(){var s,p,t=[];ct((s=t,p=function(){return n.current===r},yt(f,"beforeRouteEnter",function(t,e,r,n){return o=t,i=r,a=n,u=s,c=p,function(t,e,r){return o(t,e,function(t){r(t),"function"==typeof t&&u.push(function(){!function t(e,r,n,o){r[n]&&!r[n]._isBeingDestroyed?e(r[n]):o()&&setTimeout(function(){t(e,r,n,o)},16)}(t,i.instances,a,c)})})};var o,i,a,u,c})).concat(n.router.resolveHooks),h,function(){if(n.pending!==r)return i();n.pending=null,e(r),n.router.app&&n.router.app.$nextTick(function(){t.forEach(function(t){t()})})})})},dt.prototype.updateRoute=function(e){var r=this.current;this.current=e,this.cb&&this.cb(e),this.router.afterHooks.forEach(function(t){t&&t(e,r)})};var mt=function(r){function t(n,t){var o=this;r.call(this,n,t);var e=n.options.scrollBehavior,i=et&&e;i&&N();var a=gt(this.base);window.addEventListener("popstate",function(t){var e=o.current,r=gt(o.base);o.current===s&&r===a||o.transitionTo(r,function(t){i&&Q(n,t,e,!0)})})}return r&&(t.__proto__=r),((t.prototype=Object.create(r&&r.prototype)).constructor=t).prototype.go=function(t){window.history.go(t)},t.prototype.push=function(t,e,r){var n=this,o=this.current;this.transitionTo(t,function(t){at(b(n.base+t.fullPath)),Q(n.router,t,o,!1),e&&e(t)},r)},t.prototype.replace=function(t,e,r){var n=this,o=this.current;this.transitionTo(t,function(t){ut(b(n.base+t.fullPath)),Q(n.router,t,o,!1),e&&e(t)},r)},t.prototype.ensureURL=function(t){if(gt(this.base)!==this.current.fullPath){var e=b(this.base+this.current.fullPath);t?at(e):ut(e)}},t.prototype.getCurrentLocation=function(){return gt(this.base)},t}(dt);function gt(t){var e=decodeURI(window.location.pathname);return t&&0===e.indexOf(t)&&(e=e.slice(t.length)),(e||"/")+window.location.search+window.location.hash}var bt=function(n){function t(t,e,r){n.call(this,t,e),r&&function(t){var e=gt(t);if(!/^\/#/.test(e))return window.location.replace(b(t+"/#"+e)),!0}(this.base)||wt()}return n&&(t.__proto__=n),((t.prototype=Object.create(n&&n.prototype)).constructor=t).prototype.setupListeners=function(){var r=this,t=this.router.options.scrollBehavior,n=et&&t;n&&N(),window.addEventListener(et?"popstate":"hashchange",function(){var e=r.current;wt()&&r.transitionTo(xt(),function(t){n&&Q(r.router,t,e,!0),et||Et(t.fullPath)})})},t.prototype.push=function(t,e,r){var n=this,o=this.current;this.transitionTo(t,function(t){Rt(t.fullPath),Q(n.router,t,o,!1),e&&e(t)},r)},t.prototype.replace=function(t,e,r){var n=this,o=this.current;this.transitionTo(t,function(t){Et(t.fullPath),Q(n.router,t,o,!1),e&&e(t)},r)},t.prototype.go=function(t){window.history.go(t)},t.prototype.ensureURL=function(t){var e=this.current.fullPath;xt()!==e&&(t?Rt(e):Et(e))},t.prototype.getCurrentLocation=function(){return xt()},t}(dt);function wt(){var t=xt();return"/"===t.charAt(0)||(Et("/"+t),!1)}function xt(){var t=window.location.href,e=t.indexOf("#");return-1===e?"":decodeURI(t.slice(e+1))}function kt(t){var e=window.location.href,r=e.indexOf("#");return(0<=r?e.slice(0,r):e)+"#"+t}function Rt(t){et?at(kt(t)):window.location.hash=t}function Et(t){et?ut(kt(t)):window.location.replace(kt(t))}var Ot=function(r){function t(t,e){r.call(this,t,e),this.stack=[],this.index=-1}return r&&(t.__proto__=r),((t.prototype=Object.create(r&&r.prototype)).constructor=t).prototype.push=function(t,e,r){var n=this;this.transitionTo(t,function(t){n.stack=n.stack.slice(0,n.index+1).concat(t),n.index++,e&&e(t)},r)},t.prototype.replace=function(t,e,r){var n=this;this.transitionTo(t,function(t){n.stack=n.stack.slice(0,n.index).concat(t),e&&e(t)},r)},t.prototype.go=function(t){var e=this,r=this.index+t;if(!(r<0||r>=this.stack.length)){var n=this.stack[r];this.confirmTransition(n,function(){e.index=r,e.updateRoute(n)})}},t.prototype.getCurrentLocation=function(){var t=this.stack[this.stack.length-1];return t?t.fullPath:"/"},t.prototype.ensureURL=function(){},t}(dt),Ct=function(t){void 0===t&&(t={}),this.app=null,this.apps=[],this.options=t,this.beforeHooks=[],this.resolveHooks=[],this.afterHooks=[],this.matcher=F(t.routes||[],this);var e=t.mode||"hash";switch(this.fallback="history"===e&&!et&&!1!==t.fallback,this.fallback&&(e="hash"),m||(e="abstract"),this.mode=e){case"history":this.history=new mt(this,t.base);break;case"hash":this.history=new bt(this,t.base,this.fallback);break;case"abstract":this.history=new Ot(this,t.base)}},jt={currentRoute:{configurable:!0}};function At(e,r){return e.push(r),function(){var t=e.indexOf(r);-1<t&&e.splice(t,1)}}return Ct.prototype.match=function(t,e,r){return this.matcher.match(t,e,r)},jt.currentRoute.get=function(){return this.history&&this.history.current},Ct.prototype.init=function(t){var r=this;if(this.apps.push(t),!this.app){this.app=t;var e=this.history;if(e instanceof mt)e.transitionTo(e.getCurrentLocation());else if(e instanceof bt){var n=function(){e.setupListeners()};e.transitionTo(e.getCurrentLocation(),n,n)}e.listen(function(e){r.apps.forEach(function(t){t._route=e})})}},Ct.prototype.beforeEach=function(t){return At(this.beforeHooks,t)},Ct.prototype.beforeResolve=function(t){return At(this.resolveHooks,t)},Ct.prototype.afterEach=function(t){return At(this.afterHooks,t)},Ct.prototype.onReady=function(t,e){this.history.onReady(t,e)},Ct.prototype.onError=function(t){this.history.onError(t)},Ct.prototype.push=function(t,e,r){this.history.push(t,e,r)},Ct.prototype.replace=function(t,e,r){this.history.replace(t,e,r)},Ct.prototype.go=function(t){this.history.go(t)},Ct.prototype.back=function(){this.go(-1)},Ct.prototype.forward=function(){this.go(1)},Ct.prototype.getMatchedComponents=function(t){var e=t?t.matched?t:this.resolve(t).route:this.currentRoute;return e?[].concat.apply([],e.matched.map(function(e){return Object.keys(e.components).map(function(t){return e.components[t]})})):[]},Ct.prototype.resolve=function(t,e,r){var n,o,i,a,u=D(t,e||this.history.current,r,this),c=this.match(u,e),s=c.redirectedFrom||c.fullPath,p=this.history.base;return{location:u,route:c,href:(n=p,o=s,i=this.mode,a="hash"===i?"#"+o:o,n?b(n+"/"+a):a),normalizedTo:u,resolved:c}},Ct.prototype.addRoutes=function(t){this.matcher.addRoutes(t),this.history.current!==s&&this.history.transitionTo(this.history.getCurrentLocation())},Object.defineProperties(Ct.prototype,jt),Ct.install=function t(e){if(!t.installed||d!==e){t.installed=!0;var n=function(t){return void 0!==t},r=function(t,e){var r=t.$options._parentVnode;n(r)&&n(r=r.data)&&n(r=r.registerRouteInstance)&&r(t,e)};(d=e).mixin({beforeCreate:function(){n(this.$options.router)?((this._routerRoot=this)._router=this.$options.router,this._router.init(this),e.util.defineReactive(this,"_route",this._router.history.current)):this._routerRoot=this.$parent&&this.$parent._routerRoot||this,r(this,this)},destroyed:function(){r(this)}}),Object.defineProperty(e.prototype,"$router",{get:function(){return this._routerRoot._router}}),Object.defineProperty(e.prototype,"$route",{get:function(){return this._routerRoot._route}}),e.component("RouterView",i),e.component("RouterLink",v);var o=e.config.optionMergeStrategies;o.beforeRouteEnter=o.beforeRouteLeave=o.beforeRouteUpdate=o.created}},Ct.version="3.0.2",m&&window.Vue&&window.Vue.use(Ct),Ct});
diff --git a/node_modules/vue-router/package.json b/node_modules/vue-router/package.json
new file mode 100644
index 0000000..893e21d
--- /dev/null
+++ b/node_modules/vue-router/package.json
@@ -0,0 +1,114 @@
+{
+  "_from": "vue-router",
+  "_id": "vue-router@3.0.2",
+  "_inBundle": false,
+  "_integrity": "sha512-opKtsxjp9eOcFWdp6xLQPLmRGgfM932Tl56U9chYTnoWqKxQ8M20N7AkdEbM5beUh6wICoFGYugAX9vQjyJLFg==",
+  "_location": "/vue-router",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "tag",
+    "registry": true,
+    "raw": "vue-router",
+    "name": "vue-router",
+    "escapedName": "vue-router",
+    "rawSpec": "",
+    "saveSpec": null,
+    "fetchSpec": "latest"
+  },
+  "_requiredBy": [
+    "#USER",
+    "/"
+  ],
+  "_resolved": "https://registry.npmjs.org/vue-router/-/vue-router-3.0.2.tgz",
+  "_shasum": "dedc67afe6c4e2bc25682c8b1c2a8c0d7c7e56be",
+  "_spec": "vue-router",
+  "_where": "/Users/edwinab/BME-5/project/om",
+  "author": {
+    "name": "Evan You"
+  },
+  "bugs": {
+    "url": "https://github.com/vuejs/vue-router/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "Official router for Vue.js 2",
+  "devDependencies": {
+    "babel-core": "^6.24.1",
+    "babel-eslint": "^8.2.2",
+    "babel-loader": "^7.1.3",
+    "babel-plugin-syntax-dynamic-import": "^6.18.0",
+    "babel-preset-env": "^1.6.1",
+    "babel-preset-flow-vue": "^1.0.0",
+    "buble": "^0.19.3",
+    "chromedriver": "^2.35.0",
+    "cross-spawn": "^5.0.1",
+    "css-loader": "^0.28.10",
+    "es6-promise": "^4.2.4",
+    "eslint": "^4.19.1",
+    "eslint-plugin-flowtype": "^2.46.1",
+    "eslint-plugin-vue-libs": "^2.1.0",
+    "express": "^4.16.2",
+    "express-urlrewrite": "^1.2.0",
+    "flow-bin": "^0.66.0",
+    "jasmine": "2.8.0",
+    "nightwatch": "^0.9.20",
+    "nightwatch-helpers": "^1.0.0",
+    "path-to-regexp": "^1.7.0",
+    "phantomjs-prebuilt": "^2.1.16",
+    "rollup": "^0.56.4",
+    "rollup-plugin-buble": "^0.19.2",
+    "rollup-plugin-commonjs": "^9.0.0",
+    "rollup-plugin-flow-no-whitespace": "^1.0.0",
+    "rollup-plugin-node-resolve": "^3.0.3",
+    "rollup-plugin-replace": "^2.0.0",
+    "rollup-watch": "^4.0.0",
+    "selenium-server": "^2.53.1",
+    "typescript": "^2.7.2",
+    "uglify-js": "^3.3.13",
+    "vue": "^2.5.16",
+    "vue-loader": "^15.2.1",
+    "vue-template-compiler": "^2.5.16",
+    "vuepress": "^0.14.1",
+    "vuepress-theme-vue": "^1.1.0",
+    "webpack": "^4.9.0",
+    "webpack-dev-middleware": "^3.1.3"
+  },
+  "files": [
+    "src/*.js",
+    "dist/*.js",
+    "types/*.d.ts"
+  ],
+  "homepage": "https://github.com/vuejs/vue-router#readme",
+  "jsdelivr": "dist/vue-router.js",
+  "keywords": [
+    "vue",
+    "router",
+    "routing"
+  ],
+  "license": "MIT",
+  "main": "dist/vue-router.common.js",
+  "module": "dist/vue-router.esm.js",
+  "name": "vue-router",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/vuejs/vue-router.git"
+  },
+  "scripts": {
+    "build": "node build/build.js",
+    "dev": "node examples/server.js",
+    "dev:dist": "rollup -wm -c build/rollup.dev.config.js",
+    "docs": "vuepress dev docs",
+    "docs:build": "vuepress build docs",
+    "flow": "flow check",
+    "lint": "eslint src examples",
+    "release": "bash build/release.sh",
+    "test": "npm run lint && npm run flow && npm run test:unit && npm run test:e2e && npm run test:types",
+    "test:e2e": "node test/e2e/runner.js",
+    "test:types": "tsc -p types/test",
+    "test:unit": "jasmine JASMINE_CONFIG_PATH=test/unit/jasmine.json"
+  },
+  "sideEffects": false,
+  "typings": "types/index.d.ts",
+  "unpkg": "dist/vue-router.js",
+  "version": "3.0.2"
+}
diff --git a/node_modules/vue-router/src/create-matcher.js b/node_modules/vue-router/src/create-matcher.js
new file mode 100644
index 0000000..07987c4
--- /dev/null
+++ b/node_modules/vue-router/src/create-matcher.js
@@ -0,0 +1,202 @@
+/* @flow */
+
+import type VueRouter from './index'
+import { resolvePath } from './util/path'
+import { assert, warn } from './util/warn'
+import { createRoute } from './util/route'
+import { fillParams } from './util/params'
+import { createRouteMap } from './create-route-map'
+import { normalizeLocation } from './util/location'
+
+export type Matcher = {
+  match: (raw: RawLocation, current?: Route, redirectedFrom?: Location) => Route;
+  addRoutes: (routes: Array<RouteConfig>) => void;
+};
+
+export function createMatcher (
+  routes: Array<RouteConfig>,
+  router: VueRouter
+): Matcher {
+  const { pathList, pathMap, nameMap } = createRouteMap(routes)
+
+  function addRoutes (routes) {
+    createRouteMap(routes, pathList, pathMap, nameMap)
+  }
+
+  function match (
+    raw: RawLocation,
+    currentRoute?: Route,
+    redirectedFrom?: Location
+  ): Route {
+    const location = normalizeLocation(raw, currentRoute, false, router)
+    const { name } = location
+
+    if (name) {
+      const record = nameMap[name]
+      if (process.env.NODE_ENV !== 'production') {
+        warn(record, `Route with name '${name}' does not exist`)
+      }
+      if (!record) return _createRoute(null, location)
+      const paramNames = record.regex.keys
+        .filter(key => !key.optional)
+        .map(key => key.name)
+
+      if (typeof location.params !== 'object') {
+        location.params = {}
+      }
+
+      if (currentRoute && typeof currentRoute.params === 'object') {
+        for (const key in currentRoute.params) {
+          if (!(key in location.params) && paramNames.indexOf(key) > -1) {
+            location.params[key] = currentRoute.params[key]
+          }
+        }
+      }
+
+      if (record) {
+        location.path = fillParams(record.path, location.params, `named route "${name}"`)
+        return _createRoute(record, location, redirectedFrom)
+      }
+    } else if (location.path) {
+      location.params = {}
+      for (let i = 0; i < pathList.length; i++) {
+        const path = pathList[i]
+        const record = pathMap[path]
+        if (matchRoute(record.regex, location.path, location.params)) {
+          return _createRoute(record, location, redirectedFrom)
+        }
+      }
+    }
+    // no match
+    return _createRoute(null, location)
+  }
+
+  function redirect (
+    record: RouteRecord,
+    location: Location
+  ): Route {
+    const originalRedirect = record.redirect
+    let redirect = typeof originalRedirect === 'function'
+      ? originalRedirect(createRoute(record, location, null, router))
+      : originalRedirect
+
+    if (typeof redirect === 'string') {
+      redirect = { path: redirect }
+    }
+
+    if (!redirect || typeof redirect !== 'object') {
+      if (process.env.NODE_ENV !== 'production') {
+        warn(
+          false, `invalid redirect option: ${JSON.stringify(redirect)}`
+        )
+      }
+      return _createRoute(null, location)
+    }
+
+    const re: Object = redirect
+    const { name, path } = re
+    let { query, hash, params } = location
+    query = re.hasOwnProperty('query') ? re.query : query
+    hash = re.hasOwnProperty('hash') ? re.hash : hash
+    params = re.hasOwnProperty('params') ? re.params : params
+
+    if (name) {
+      // resolved named direct
+      const targetRecord = nameMap[name]
+      if (process.env.NODE_ENV !== 'production') {
+        assert(targetRecord, `redirect failed: named route "${name}" not found.`)
+      }
+      return match({
+        _normalized: true,
+        name,
+        query,
+        hash,
+        params
+      }, undefined, location)
+    } else if (path) {
+      // 1. resolve relative redirect
+      const rawPath = resolveRecordPath(path, record)
+      // 2. resolve params
+      const resolvedPath = fillParams(rawPath, params, `redirect route with path "${rawPath}"`)
+      // 3. rematch with existing query and hash
+      return match({
+        _normalized: true,
+        path: resolvedPath,
+        query,
+        hash
+      }, undefined, location)
+    } else {
+      if (process.env.NODE_ENV !== 'production') {
+        warn(false, `invalid redirect option: ${JSON.stringify(redirect)}`)
+      }
+      return _createRoute(null, location)
+    }
+  }
+
+  function alias (
+    record: RouteRecord,
+    location: Location,
+    matchAs: string
+  ): Route {
+    const aliasedPath = fillParams(matchAs, location.params, `aliased route with path "${matchAs}"`)
+    const aliasedMatch = match({
+      _normalized: true,
+      path: aliasedPath
+    })
+    if (aliasedMatch) {
+      const matched = aliasedMatch.matched
+      const aliasedRecord = matched[matched.length - 1]
+      location.params = aliasedMatch.params
+      return _createRoute(aliasedRecord, location)
+    }
+    return _createRoute(null, location)
+  }
+
+  function _createRoute (
+    record: ?RouteRecord,
+    location: Location,
+    redirectedFrom?: Location
+  ): Route {
+    if (record && record.redirect) {
+      return redirect(record, redirectedFrom || location)
+    }
+    if (record && record.matchAs) {
+      return alias(record, location, record.matchAs)
+    }
+    return createRoute(record, location, redirectedFrom, router)
+  }
+
+  return {
+    match,
+    addRoutes
+  }
+}
+
+function matchRoute (
+  regex: RouteRegExp,
+  path: string,
+  params: Object
+): boolean {
+  const m = path.match(regex)
+
+  if (!m) {
+    return false
+  } else if (!params) {
+    return true
+  }
+
+  for (let i = 1, len = m.length; i < len; ++i) {
+    const key = regex.keys[i - 1]
+    const val = typeof m[i] === 'string' ? decodeURIComponent(m[i]) : m[i]
+    if (key) {
+      // Fix #1994: using * with props: true generates a param named 0
+      params[key.name || 'pathMatch'] = val
+    }
+  }
+
+  return true
+}
+
+function resolveRecordPath (path: string, record: RouteRecord): string {
+  return resolvePath(path, record.parent ? record.parent.path : '/', true)
+}
diff --git a/node_modules/vue-router/src/create-route-map.js b/node_modules/vue-router/src/create-route-map.js
new file mode 100644
index 0000000..560e05f
--- /dev/null
+++ b/node_modules/vue-router/src/create-route-map.js
@@ -0,0 +1,171 @@
+/* @flow */
+
+import Regexp from 'path-to-regexp'
+import { cleanPath } from './util/path'
+import { assert, warn } from './util/warn'
+
+export function createRouteMap (
+  routes: Array<RouteConfig>,
+  oldPathList?: Array<string>,
+  oldPathMap?: Dictionary<RouteRecord>,
+  oldNameMap?: Dictionary<RouteRecord>
+): {
+  pathList: Array<string>;
+  pathMap: Dictionary<RouteRecord>;
+  nameMap: Dictionary<RouteRecord>;
+} {
+  // the path list is used to control path matching priority
+  const pathList: Array<string> = oldPathList || []
+  // $flow-disable-line
+  const pathMap: Dictionary<RouteRecord> = oldPathMap || Object.create(null)
+  // $flow-disable-line
+  const nameMap: Dictionary<RouteRecord> = oldNameMap || Object.create(null)
+
+  routes.forEach(route => {
+    addRouteRecord(pathList, pathMap, nameMap, route)
+  })
+
+  // ensure wildcard routes are always at the end
+  for (let i = 0, l = pathList.length; i < l; i++) {
+    if (pathList[i] === '*') {
+      pathList.push(pathList.splice(i, 1)[0])
+      l--
+      i--
+    }
+  }
+
+  return {
+    pathList,
+    pathMap,
+    nameMap
+  }
+}
+
+function addRouteRecord (
+  pathList: Array<string>,
+  pathMap: Dictionary<RouteRecord>,
+  nameMap: Dictionary<RouteRecord>,
+  route: RouteConfig,
+  parent?: RouteRecord,
+  matchAs?: string
+) {
+  const { path, name } = route
+  if (process.env.NODE_ENV !== 'production') {
+    assert(path != null, `"path" is required in a route configuration.`)
+    assert(
+      typeof route.component !== 'string',
+      `route config "component" for path: ${String(path || name)} cannot be a ` +
+      `string id. Use an actual component instead.`
+    )
+  }
+
+  const pathToRegexpOptions: PathToRegexpOptions = route.pathToRegexpOptions || {}
+  const normalizedPath = normalizePath(
+    path,
+    parent,
+    pathToRegexpOptions.strict
+  )
+
+  if (typeof route.caseSensitive === 'boolean') {
+    pathToRegexpOptions.sensitive = route.caseSensitive
+  }
+
+  const record: RouteRecord = {
+    path: normalizedPath,
+    regex: compileRouteRegex(normalizedPath, pathToRegexpOptions),
+    components: route.components || { default: route.component },
+    instances: {},
+    name,
+    parent,
+    matchAs,
+    redirect: route.redirect,
+    beforeEnter: route.beforeEnter,
+    meta: route.meta || {},
+    props: route.props == null
+      ? {}
+      : route.components
+        ? route.props
+        : { default: route.props }
+  }
+
+  if (route.children) {
+    // Warn if route is named, does not redirect and has a default child route.
+    // If users navigate to this route by name, the default child will
+    // not be rendered (GH Issue #629)
+    if (process.env.NODE_ENV !== 'production') {
+      if (route.name && !route.redirect && route.children.some(child => /^\/?$/.test(child.path))) {
+        warn(
+          false,
+          `Named Route '${route.name}' has a default child route. ` +
+          `When navigating to this named route (:to="{name: '${route.name}'"), ` +
+          `the default child route will not be rendered. Remove the name from ` +
+          `this route and use the name of the default child route for named ` +
+          `links instead.`
+        )
+      }
+    }
+    route.children.forEach(child => {
+      const childMatchAs = matchAs
+        ? cleanPath(`${matchAs}/${child.path}`)
+        : undefined
+      addRouteRecord(pathList, pathMap, nameMap, child, record, childMatchAs)
+    })
+  }
+
+  if (route.alias !== undefined) {
+    const aliases = Array.isArray(route.alias)
+      ? route.alias
+      : [route.alias]
+
+    aliases.forEach(alias => {
+      const aliasRoute = {
+        path: alias,
+        children: route.children
+      }
+      addRouteRecord(
+        pathList,
+        pathMap,
+        nameMap,
+        aliasRoute,
+        parent,
+        record.path || '/' // matchAs
+      )
+    })
+  }
+
+  if (!pathMap[record.path]) {
+    pathList.push(record.path)
+    pathMap[record.path] = record
+  }
+
+  if (name) {
+    if (!nameMap[name]) {
+      nameMap[name] = record
+    } else if (process.env.NODE_ENV !== 'production' && !matchAs) {
+      warn(
+        false,
+        `Duplicate named routes definition: ` +
+        `{ name: "${name}", path: "${record.path}" }`
+      )
+    }
+  }
+}
+
+function compileRouteRegex (path: string, pathToRegexpOptions: PathToRegexpOptions): RouteRegExp {
+  const regex = Regexp(path, [], pathToRegexpOptions)
+  if (process.env.NODE_ENV !== 'production') {
+    const keys: any = Object.create(null)
+    regex.keys.forEach(key => {
+      warn(!keys[key.name], `Duplicate param keys in route with path: "${path}"`)
+      keys[key.name] = true
+    })
+  }
+  return regex
+}
+
+function normalizePath (path: string, parent?: RouteRecord, strict?: boolean): string {
+  if (!strict) path = path.replace(/\/$/, '')
+  if (path[0] === '/') return path
+  if (parent == null) return path
+  return cleanPath(`${parent.path}/${path}`)
+}
diff --git a/node_modules/vue-router/src/index.js b/node_modules/vue-router/src/index.js
new file mode 100644
index 0000000..a1a7b85
--- /dev/null
+++ b/node_modules/vue-router/src/index.js
@@ -0,0 +1,235 @@
+/* @flow */
+
+import { install } from './install'
+import { START } from './util/route'
+import { assert } from './util/warn'
+import { inBrowser } from './util/dom'
+import { cleanPath } from './util/path'
+import { createMatcher } from './create-matcher'
+import { normalizeLocation } from './util/location'
+import { supportsPushState } from './util/push-state'
+
+import { HashHistory } from './history/hash'
+import { HTML5History } from './history/html5'
+import { AbstractHistory } from './history/abstract'
+
+import type { Matcher } from './create-matcher'
+
+export default class VueRouter {
+  static install: () => void;
+  static version: string;
+
+  app: any;
+  apps: Array<any>;
+  ready: boolean;
+  readyCbs: Array<Function>;
+  options: RouterOptions;
+  mode: string;
+  history: HashHistory | HTML5History | AbstractHistory;
+  matcher: Matcher;
+  fallback: boolean;
+  beforeHooks: Array<?NavigationGuard>;
+  resolveHooks: Array<?NavigationGuard>;
+  afterHooks: Array<?AfterNavigationHook>;
+
+  constructor (options: RouterOptions = {}) {
+    this.app = null
+    this.apps = []
+    this.options = options
+    this.beforeHooks = []
+    this.resolveHooks = []
+    this.afterHooks = []
+    this.matcher = createMatcher(options.routes || [], this)
+
+    let mode = options.mode || 'hash'
+    this.fallback = mode === 'history' && !supportsPushState && options.fallback !== false
+    if (this.fallback) {
+      mode = 'hash'
+    }
+    if (!inBrowser) {
+      mode = 'abstract'
+    }
+    this.mode = mode
+
+    switch (mode) {
+      case 'history':
+        this.history = new HTML5History(this, options.base)
+        break
+      case 'hash':
+        this.history = new HashHistory(this, options.base, this.fallback)
+        break
+      case 'abstract':
+        this.history = new AbstractHistory(this, options.base)
+        break
+      default:
+        if (process.env.NODE_ENV !== 'production') {
+          assert(false, `invalid mode: ${mode}`)
+        }
+    }
+  }
+
+  match (
+    raw: RawLocation,
+    current?: Route,
+    redirectedFrom?: Location
+  ): Route {
+    return this.matcher.match(raw, current, redirectedFrom)
+  }
+
+  get currentRoute (): ?Route {
+    return this.history && this.history.current
+  }
+
+  init (app: any /* Vue component instance */) {
+    process.env.NODE_ENV !== 'production' && assert(
+      install.installed,
+      `not installed. Make sure to call \`Vue.use(VueRouter)\` ` +
+      `before creating root instance.`
+    )
+
+    this.apps.push(app)
+
+    // main app already initialized.
+    if (this.app) {
+      return
+    }
+
+    this.app = app
+
+    const history = this.history
+
+    if (history instanceof HTML5History) {
+      history.transitionTo(history.getCurrentLocation())
+    } else if (history instanceof HashHistory) {
+      const setupHashListener = () => {
+        history.setupListeners()
+      }
+      history.transitionTo(
+        history.getCurrentLocation(),
+        setupHashListener,
+        setupHashListener
+      )
+    }
+
+    history.listen(route => {
+      this.apps.forEach((app) => {
+        app._route = route
+      })
+    })
+  }
+
+  beforeEach (fn: Function): Function {
+    return registerHook(this.beforeHooks, fn)
+  }
+
+  beforeResolve (fn: Function): Function {
+    return registerHook(this.resolveHooks, fn)
+  }
+
+  afterEach (fn: Function): Function {
+    return registerHook(this.afterHooks, fn)
+  }
+
+  onReady (cb: Function, errorCb?: Function) {
+    this.history.onReady(cb, errorCb)
+  }
+
+  onError (errorCb: Function) {
+    this.history.onError(errorCb)
+  }
+
+  push (location: RawLocation, onComplete?: Function, onAbort?: Function) {
+    this.history.push(location, onComplete, onAbort)
+  }
+
+  replace (location: RawLocation, onComplete?: Function, onAbort?: Function) {
+    this.history.replace(location, onComplete, onAbort)
+  }
+
+  go (n: number) {
+    this.history.go(n)
+  }
+
+  back () {
+    this.go(-1)
+  }
+
+  forward () {
+    this.go(1)
+  }
+
+  getMatchedComponents (to?: RawLocation | Route): Array<any> {
+    const route: any = to
+      ? to.matched
+        ? to
+        : this.resolve(to).route
+      : this.currentRoute
+    if (!route) {
+      return []
+    }
+    return [].concat.apply([], route.matched.map(m => {
+      return Object.keys(m.components).map(key => {
+        return m.components[key]
+      })
+    }))
+  }
+
+  resolve (
+    to: RawLocation,
+    current?: Route,
+    append?: boolean
+  ): {
+    location: Location,
+    route: Route,
+    href: string,
+    // for backwards compat
+    normalizedTo: Location,
+    resolved: Route
+  } {
+    const location = normalizeLocation(
+      to,
+      current || this.history.current,
+      append,
+      this
+    )
+    const route = this.match(location, current)
+    const fullPath = route.redirectedFrom || route.fullPath
+    const base = this.history.base
+    const href = createHref(base, fullPath, this.mode)
+    return {
+      location,
+      route,
+      href,
+      // for backwards compat
+      normalizedTo: location,
+      resolved: route
+    }
+  }
+
+  addRoutes (routes: Array<RouteConfig>) {
+    this.matcher.addRoutes(routes)
+    if (this.history.current !== START) {
+      this.history.transitionTo(this.history.getCurrentLocation())
+    }
+  }
+}
+
+function registerHook (list: Array<any>, fn: Function): Function {
+  list.push(fn)
+  return () => {
+    const i = list.indexOf(fn)
+    if (i > -1) list.splice(i, 1)
+  }
+}
+
+function createHref (base: string, fullPath: string, mode) {
+  var path = mode === 'hash' ? '#' + fullPath : fullPath
+  return base ? cleanPath(base + '/' + path) : path
+}
+
+VueRouter.install = install
+VueRouter.version = '__VERSION__'
+
+if (inBrowser && window.Vue) {
+  window.Vue.use(VueRouter)
+}
diff --git a/node_modules/vue-router/src/install.js b/node_modules/vue-router/src/install.js
new file mode 100644
index 0000000..ee8506a
--- /dev/null
+++ b/node_modules/vue-router/src/install.js
@@ -0,0 +1,52 @@
+import View from './components/view'
+import Link from './components/link'
+
+export let _Vue
+
+export function install (Vue) {
+  if (install.installed && _Vue === Vue) return
+  install.installed = true
+
+  _Vue = Vue
+
+  const isDef = v => v !== undefined
+
+  const registerInstance = (vm, callVal) => {
+    let i = vm.$options._parentVnode
+    if (isDef(i) && isDef(i = i.data) && isDef(i = i.registerRouteInstance)) {
+      i(vm, callVal)
+    }
+  }
+
+  Vue.mixin({
+    beforeCreate () {
+      if (isDef(this.$options.router)) {
+        this._routerRoot = this
+        this._router = this.$options.router
+        this._router.init(this)
+        Vue.util.defineReactive(this, '_route', this._router.history.current)
+      } else {
+        this._routerRoot = (this.$parent && this.$parent._routerRoot) || this
+      }
+      registerInstance(this, this)
+    },
+    destroyed () {
+      registerInstance(this)
+    }
+  })
+
+  Object.defineProperty(Vue.prototype, '$router', {
+    get () { return this._routerRoot._router }
+  })
+
+  Object.defineProperty(Vue.prototype, '$route', {
+    get () { return this._routerRoot._route }
+  })
+
+  Vue.component('RouterView', View)
+  Vue.component('RouterLink', Link)
+
+  const strats = Vue.config.optionMergeStrategies
+  // use the same hook merging strategy for route hooks
+  strats.beforeRouteEnter = strats.beforeRouteLeave = strats.beforeRouteUpdate = strats.created
+}
diff --git a/node_modules/vue-router/types/index.d.ts b/node_modules/vue-router/types/index.d.ts
new file mode 100644
index 0000000..087275c
--- /dev/null
+++ b/node_modules/vue-router/types/index.d.ts
@@ -0,0 +1,16 @@
+import "./vue";
+import { VueRouter } from "./router";
+
+export default VueRouter;
+
+export {
+  RouterMode,
+  RawLocation,
+  RedirectOption,
+  RouterOptions,
+  RouteConfig,
+  RouteRecord,
+  Location,
+  Route,
+  NavigationGuard
+} from "./router";
diff --git a/node_modules/vue-router/types/router.d.ts b/node_modules/vue-router/types/router.d.ts
new file mode 100644
index 0000000..5922258
--- /dev/null
+++ b/node_modules/vue-router/types/router.d.ts
@@ -0,0 +1,127 @@
+import Vue, { ComponentOptions, PluginFunction, AsyncComponent } from "vue";
+
+type Component = ComponentOptions<Vue> | typeof Vue | AsyncComponent;
+type Dictionary<T> = { [key: string]: T };
+type ErrorHandler = (err: Error) => void;
+
+export type RouterMode = "hash" | "history" | "abstract";
+export type RawLocation = string | Location;
+export type RedirectOption = RawLocation | ((to: Route) => RawLocation);
+export type NavigationGuard<V extends Vue = Vue> = (
+  to: Route,
+  from: Route,
+  next: (to?: RawLocation | false | ((vm: V) => any) | void) => void
+) => any
+
+export declare class VueRouter {
+  constructor (options?: RouterOptions);
+
+  app: Vue;
+  mode: RouterMode;
+  currentRoute: Route;
+
+  beforeEach (guard: NavigationGuard): Function;
+  beforeResolve (guard: NavigationGuard): Function;
+  afterEach (hook: (to: Route, from: Route) => any): Function;
+  push (location: RawLocation, onComplete?: Function, onAbort?: ErrorHandler): void;
+  replace (location: RawLocation, onComplete?: Function, onAbort?: ErrorHandler): void;
+  go (n: number): void;
+  back (): void;
+  forward (): void;
+  getMatchedComponents (to?: RawLocation | Route): Component[];
+  onReady (cb: Function, errorCb?: ErrorHandler): void;
+  onError (cb: ErrorHandler): void;
+  addRoutes (routes: RouteConfig[]): void;
+  resolve (to: RawLocation, current?: Route, append?: boolean): {
+    location: Location;
+    route: Route;
+    href: string;
+    // backwards compat
+    normalizedTo: Location;
+    resolved: Route;
+  };
+
+  static install: PluginFunction<never>;
+}
+
+type Position = { x: number, y: number };
+type PositionResult = Position | { selector: string, offset?: Position } | void;
+
+export interface RouterOptions {
+  routes?: RouteConfig[];
+  mode?: RouterMode;
+  fallback?: boolean;
+  base?: string;
+  linkActiveClass?: string;
+  linkExactActiveClass?: string;
+  parseQuery?: (query: string) => Object;
+  stringifyQuery?: (query: Object) => string;
+  scrollBehavior?: (
+    to: Route,
+    from: Route,
+    savedPosition: Position | void
+  ) => PositionResult | Promise<PositionResult>;
+}
+
+type RoutePropsFunction = (route: Route) => Object;
+
+export interface PathToRegexpOptions {
+  sensitive?: boolean;
+  strict?: boolean;
+  end?: boolean;
+}
+
+export interface RouteConfig {
+  path: string;
+  name?: string;
+  component?: Component;
+  components?: Dictionary<Component>;
+  redirect?: RedirectOption;
+  alias?: string | string[];
+  children?: RouteConfig[];
+  meta?: any;
+  beforeEnter?: NavigationGuard;
+  props?: boolean | Object | RoutePropsFunction;
+  caseSensitive?: boolean;
+  pathToRegexpOptions?: PathToRegexpOptions;
+}
+
+export interface RouteRecord {
+  path: string;
+  regex: RegExp;
+  components: Dictionary<Component>;
+  instances: Dictionary<Vue>;
+  name?: string;
+  parent?: RouteRecord;
+  redirect?: RedirectOption;
+  matchAs?: string;
+  meta: any;
+  beforeEnter?: (
+    route: Route,
+    redirect: (location: RawLocation) => void,
+    next: () => void
+  ) => any;
+  props: boolean | Object | RoutePropsFunction | Dictionary<boolean | Object | RoutePropsFunction>;
+}
+
+export interface Location {
+  name?: string;
+  path?: string;
+  hash?: string;
+  query?: Dictionary<string | string[]>;
+  params?: Dictionary<string>;
+  append?: boolean;
+  replace?: boolean;
+}
+
+export interface Route {
+  path: string;
+  name?: string;
+  hash: string;
+  query: Dictionary<string | string[]>;
+  params: Dictionary<string>;
+  fullPath: string;
+  matched: RouteRecord[];
+  redirectedFrom?: string;
+  meta?: any;
+}
diff --git a/node_modules/vue-router/types/vue.d.ts b/node_modules/vue-router/types/vue.d.ts
new file mode 100644
index 0000000..4e57eec
--- /dev/null
+++ b/node_modules/vue-router/types/vue.d.ts
@@ -0,0 +1,22 @@
+/**
+ * Augment the typings of Vue.js
+ */
+
+import Vue from "vue";
+import VueRouter, { Route, RawLocation, NavigationGuard } from "./index";
+
+declare module "vue/types/vue" {
+  interface Vue {
+    $router: VueRouter;
+    $route: Route;
+  }
+}
+
+declare module "vue/types/options" {
+  interface ComponentOptions<V extends Vue> {
+    router?: VueRouter;
+    beforeRouteEnter?: NavigationGuard<V>;
+    beforeRouteLeave?: NavigationGuard<V>;
+    beforeRouteUpdate?: NavigationGuard<V>;
+  }
+}
diff --git a/package-lock.json b/package-lock.json
index dec7b30..e9d8498 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1192,6 +1192,11 @@
       "resolved": "https://registry.npmjs.org/vue/-/vue-2.5.17.tgz",
       "integrity": "sha512-mFbcWoDIJi0w0Za4emyLiW72Jae0yjANHbCVquMKijcavBGypqlF7zHRgMa5k4sesdv7hv2rB4JPdZfR+TPfhQ=="
     },
+    "vue-router": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/vue-router/-/vue-router-3.0.2.tgz",
+      "integrity": "sha512-opKtsxjp9eOcFWdp6xLQPLmRGgfM932Tl56U9chYTnoWqKxQ8M20N7AkdEbM5beUh6wICoFGYugAX9vQjyJLFg=="
+    },
     "which": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
diff --git a/package.json b/package.json
index c6cd5f0..50cafcc 100644
--- a/package.json
+++ b/package.json
@@ -22,6 +22,7 @@
 		"express": "^4.16.4",
 		"express-session": "^1.15.6",
 		"morgan": "^1.9.1",
-		"vue": "^2.5.17"
+		"vue": "^2.5.17",
+		"vue-router": "^3.0.2"
 	}
 }
diff --git a/public/createMessage.js b/public/createMessage.js
new file mode 100644
index 0000000..e69de29
diff --git a/public/files.js b/public/files.js
index e69de29..d1a9fcb 100644
--- a/public/files.js
+++ b/public/files.js
@@ -0,0 +1,8 @@
+Vue.component('Files', {
+    data: function() {
+        return {
+            count: 0
+        }
+    },
+    template: `<button v-on:click="count++"> You clicked me {{ count }} times. </button>`
+})
diff --git a/public/home.js b/public/home.js
index 5956eaf..58fc1b3 100644
--- a/public/home.js
+++ b/public/home.js
@@ -1,5 +1,6 @@
-Vue.component('msg-item', {
-    template: `<div class="om-card card">
+const ('Home', {
+    template: ` <div id="message-list" v-for="(msg, index) in               messages" :key="msg.id" :subject="msg.subject"               :message="msg.message" :tag="msg.tag"                       :user="msg.user">
+                <div class="om-card card">
                 <h6 class="msg-head">
                 <b>{{ subject }}</b>
                 <img src="favicon.ico" width=20px height=20px>
@@ -9,7 +10,7 @@ Vue.component('msg-item', {
                 <div class="om-user-line">
                 <i class="material-icons">account_circle</i>
                 Erstellt von {{ user }}
-                </div>`,
+                </div></div>`,
     props: ['subject', 'message', 'tag', 'user']
 })
 
diff --git a/public/index.html b/public/index.html
index b46575c..d462cae 100644
--- a/public/index.html
+++ b/public/index.html
@@ -17,8 +17,9 @@
 	<link rel="stylesheet" href="https://unpkg.com/bootstrap-material-design@4.1.1/dist/css/bootstrap-material-design.min.css" integrity="sha384-wXznGJNEXNG1NFsbm0ugrLFMQPWswR3lds2VeinahP8N0zJw9VWSopbjv2x7WCvX" crossorigin="anonymous">
 
     <!-- NOTE: VUE.js und VueRouter -->
-    <script src="https://unpkg.com/vue"></script>
-    <script src="https://unpkg.com/vue-router/dist/vue-router.js"></script>
+    <script src=lib/vue.js></script>
+    <script src=lib/vue-router.js></script>
+    <script src=lib/jquery-3.3.1.min.js></script>
 
 	<!-- CSS_Custom Design -->
 	<link rel="stylesheet" type="text/css" href="style.css">
@@ -28,6 +29,7 @@
 </head>
 
 <body>
+    <div id="app">
 	<div class="om-header-container">
 		<div class="om-header">
 			<a href="index.html"><img src="th_nbg_ohmicon_amp.png" width=55px height=55px></a>
@@ -38,123 +40,58 @@
 	</div>
 
 
-    <div class="om-content">
+
+        <router-view class="om-content">
+        <Home></Home>
+        <!--
         <div id="message-list">
-                <msg-item
+                <Home
                     v-for="(msg, index) in messages"
                     :key="msg.id"
                     :subject="msg.subject"
                     :message="msg.message"
                     :tag="msg.tag"
                     :user="msg.user"
-                ></msg-item>
+                ></Home>
         </div>
-    </div>
-
-
-	<!--first try of vue.js data-binding
-	<div class="om-content">
-		<div id="sample">
-		<div class="om-card card" v-for="msgs in private.messages">
-    		<div v-for="elements in msgs.message">
-                <h6 class="msg-head">
-                <b>{{elements.subject}}</b>
-                <img src="favicon.ico" width=20px height=20px>
-                </h6>
-				<p>{{elements.msg}}
-				<a href="#">{{elements.tags}}</a></p>
-				{{elements.user}}
-            </div>
-            <div class="om-user-line">
-            <i class="material-icons">account_circle</i>
-            Erstellt von
-        </div>
-    	</div>
-        </div>
-    </div>
-    -->
-
-	<!--HTML Mockup
-
-		<div class="om-card card">
-			<h6 class="msg-head">
-				<b>Betreff</b>
-				<img src="favicon.ico" width=20px height=20px>
-			</h6>
-			<p>Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam.<br>
-				<a href="#">#efi</a> <a href="#">#me</a> <a href="#">#projekt</a></p>
-			<div class="om-user-line">
-				<i class="material-icons">account_circle</i>
-				 Erstellt von User1
-			</div>
-		</div>
-
-		<div class="om-card card">
-			<h6 class="msg-head">
-				<b>Betreff</b>
-				<img src="favicon.ico" width=20px height=20px>
-			</h6>
-			<p>Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam.<br>
-				<a href="#">#efi</a> <a href="#">#me</a> <a href="#">#projekt</a></p>
-			<div class="om-user-line">
-				<i class="material-icons">account_circle</i>
-				 Erstellt von User1
-			</div>
-		</div>
-
-		<div class="om-card card">
-			<h6 class="msg-head">
-				<b>Betreff</b>
-				<img src="favicon.ico" width=20px height=20px>
-			</h6>
-			<p>Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam.<br>
-				<a href="#">#efi</a> <a href="#">#me</a> <a href="#">#projekt</a></p>
-			<div class="om-user-line">
-				<i class="material-icons">account_circle</i>
-				 Erstellt von User1
-			</div>
-		</div>
-
-		<div class="om-card card">
-			<h6 class="msg-head">
-				<b>Betreff</b>
-				<img src="favicon.ico" width=20px height=20px>
-			</h6>
-			<p>Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam.<br>
-				<a href="#">#efi</a> <a href="#">#me</a> <a href="#">#projekt</a></p>
-			<div class="om-user-line">
-				<i class="material-icons">account_circle</i>
-				 Erstellt von User1
-			</div>
-		</div>
-
-		<div class="om-card card">
-			<h6 class="msg-head">
-				<b>Betreff</b>
-				<img src="favicon.ico" width=20px height=20px>
-			</h6>
-			<p>Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam.<br>
-				<a href="#">#efi</a> <a href="#">#me</a> <a href="#">#projekt</a></p>
-			<div class="om-user-line">
-				<i class="material-icons">account_circle</i>
-				 Erstellt von User1
-			</div>
-		</div>
-
-	</div>
--->
+        -->
+        </router-view>
 
 	<nav class="nav nav-tabs nav-justified om-nav ">
-		<a class="nav-item nav-link" href="#"><i class="material-icons">home</i></a>
-		<a class="nav-item nav-link" href="#"><i class="material-icons">folder</i></a>
-		<a class="nav-item nav-link outlined" href="message.html"><i class="material-icons">add_circle</i></a>
-		<a class="nav-item nav-link" href="#"><i class="material-icons">bookmark</i></a>
-		<a class="nav-item nav-link" href="#"><i class="material-icons">person</i></a>
+		<router-link to="/home" class="nav-item nav-link"><i class="material-icons">home</i></router-link>
+		<router-link to="/files" class="nav-item nav-link"><i class="material-icons">folder</i></router-link>
+		<router-link to="/createMessage" class="nav-item nav-link outlined"><i class="material-icons">add_circle</i></router-link>
+		<router-link to="/bookmark" class="nav-item nav-link"><i class="material-icons">bookmark</i></router-link>
+		<router-link to="/profil" class="nav-item nav-link"><i class="material-icons">person</i></router-link>
 	</nav>
 
+    </div>
+
+    <script>
+
+        const routes = [
+            { path: "/home",            component: Home },
+            { path: "/files",           component: Files },
+            { path: "/createMessage",   component: CreateMsg },
+            { path: "/bookmark",        component: Bookmark },
+            { path: "/profil",          component: Profil },
+        ];
+        const router = new VueRouter({
+			routes
+		});
+        var app = new Vue({
+            router,
+            el: '#app'
+        });
+    </script>
+
 	<!-- NOTE: JavaScript Libs & Files -->
-    <!-- NOTE: Call home.js -->
+    <!-- NOTE: Call Vue Components -->
     <script src="home.js"></script>
+    <!-- <script src="files.js"></script> -->
+    <script src="createMessage.js"></script>
+    <script src="bookmark.js"></script>
+    <script src="profil.js"></script>
 	<!-- CDN_Vue.js developmement lib -->
 	<script src="https://cdn.jsdelivr.net/npm/vue@2.5.17/dist/vue.js"></script>
 	<!-- CDN_Vue.js minified lib -->
diff --git a/public/lib/jquery-3.3.1.min.js b/public/lib/jquery-3.3.1.min.js
index e69de29..4d9b3a2 100644
--- a/public/lib/jquery-3.3.1.min.js
+++ b/public/lib/jquery-3.3.1.min.js
@@ -0,0 +1,2 @@
+/*! jQuery v3.3.1 | (c) JS Foundation and other contributors | jquery.org/license */
+!function(e,t){"use strict";"object"==typeof module&&"object"==typeof module.exports?module.exports=e.document?t(e,!0):function(e){if(!e.document)throw new Error("jQuery requires a window with a document");return t(e)}:t(e)}("undefined"!=typeof window?window:this,function(e,t){"use strict";var n=[],r=e.document,i=Object.getPrototypeOf,o=n.slice,a=n.concat,s=n.push,u=n.indexOf,l={},c=l.toString,f=l.hasOwnProperty,p=f.toString,d=p.call(Object),h={},g=function e(t){return"function"==typeof t&&"number"!=typeof t.nodeType},y=function e(t){return null!=t&&t===t.window},v={type:!0,src:!0,noModule:!0};function m(e,t,n){var i,o=(t=t||r).createElement("script");if(o.text=e,n)for(i in v)n[i]&&(o[i]=n[i]);t.head.appendChild(o).parentNode.removeChild(o)}function x(e){return null==e?e+"":"object"==typeof e||"function"==typeof e?l[c.call(e)]||"object":typeof e}var b="3.3.1",w=function(e,t){return new w.fn.init(e,t)},T=/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;w.fn=w.prototype={jquery:"3.3.1",constructor:w,length:0,toArray:function(){return o.call(this)},get:function(e){return null==e?o.call(this):e<0?this[e+this.length]:this[e]},pushStack:function(e){var t=w.merge(this.constructor(),e);return t.prevObject=this,t},each:function(e){return w.each(this,e)},map:function(e){return this.pushStack(w.map(this,function(t,n){return e.call(t,n,t)}))},slice:function(){return this.pushStack(o.apply(this,arguments))},first:function(){return this.eq(0)},last:function(){return this.eq(-1)},eq:function(e){var t=this.length,n=+e+(e<0?t:0);return this.pushStack(n>=0&&n<t?[this[n]]:[])},end:function(){return this.prevObject||this.constructor()},push:s,sort:n.sort,splice:n.splice},w.extend=w.fn.extend=function(){var e,t,n,r,i,o,a=arguments[0]||{},s=1,u=arguments.length,l=!1;for("boolean"==typeof a&&(l=a,a=arguments[s]||{},s++),"object"==typeof a||g(a)||(a={}),s===u&&(a=this,s--);s<u;s++)if(null!=(e=arguments[s]))for(t in e)n=a[t],a!==(r=e[t])&&(l&&r&&(w.isPlainObject(r)||(i=Array.isArray(r)))?(i?(i=!1,o=n&&Array.isArray(n)?n:[]):o=n&&w.isPlainObject(n)?n:{},a[t]=w.extend(l,o,r)):void 0!==r&&(a[t]=r));return a},w.extend({expando:"jQuery"+("3.3.1"+Math.random()).replace(/\D/g,""),isReady:!0,error:function(e){throw new Error(e)},noop:function(){},isPlainObject:function(e){var t,n;return!(!e||"[object Object]"!==c.call(e))&&(!(t=i(e))||"function"==typeof(n=f.call(t,"constructor")&&t.constructor)&&p.call(n)===d)},isEmptyObject:function(e){var t;for(t in e)return!1;return!0},globalEval:function(e){m(e)},each:function(e,t){var n,r=0;if(C(e)){for(n=e.length;r<n;r++)if(!1===t.call(e[r],r,e[r]))break}else for(r in e)if(!1===t.call(e[r],r,e[r]))break;return e},trim:function(e){return null==e?"":(e+"").replace(T,"")},makeArray:function(e,t){var n=t||[];return null!=e&&(C(Object(e))?w.merge(n,"string"==typeof e?[e]:e):s.call(n,e)),n},inArray:function(e,t,n){return null==t?-1:u.call(t,e,n)},merge:function(e,t){for(var n=+t.length,r=0,i=e.length;r<n;r++)e[i++]=t[r];return e.length=i,e},grep:function(e,t,n){for(var r,i=[],o=0,a=e.length,s=!n;o<a;o++)(r=!t(e[o],o))!==s&&i.push(e[o]);return i},map:function(e,t,n){var r,i,o=0,s=[];if(C(e))for(r=e.length;o<r;o++)null!=(i=t(e[o],o,n))&&s.push(i);else for(o in e)null!=(i=t(e[o],o,n))&&s.push(i);return a.apply([],s)},guid:1,support:h}),"function"==typeof Symbol&&(w.fn[Symbol.iterator]=n[Symbol.iterator]),w.each("Boolean Number String Function Array Date RegExp Object Error Symbol".split(" "),function(e,t){l["[object "+t+"]"]=t.toLowerCase()});function C(e){var t=!!e&&"length"in e&&e.length,n=x(e);return!g(e)&&!y(e)&&("array"===n||0===t||"number"==typeof t&&t>0&&t-1 in e)}var E=function(e){var t,n,r,i,o,a,s,u,l,c,f,p,d,h,g,y,v,m,x,b="sizzle"+1*new Date,w=e.document,T=0,C=0,E=ae(),k=ae(),S=ae(),D=function(e,t){return e===t&&(f=!0),0},N={}.hasOwnProperty,A=[],j=A.pop,q=A.push,L=A.push,H=A.slice,O=function(e,t){for(var n=0,r=e.length;n<r;n++)if(e[n]===t)return n;return-1},P="checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",M="[\\x20\\t\\r\\n\\f]",R="(?:\\\\.|[\\w-]|[^\0-\\xa0])+",I="\\["+M+"*("+R+")(?:"+M+"*([*^$|!~]?=)"+M+"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|("+R+"))|)"+M+"*\\]",W=":("+R+")(?:\\((('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|((?:\\\\.|[^\\\\()[\\]]|"+I+")*)|.*)\\)|)",$=new RegExp(M+"+","g"),B=new RegExp("^"+M+"+|((?:^|[^\\\\])(?:\\\\.)*)"+M+"+$","g"),F=new RegExp("^"+M+"*,"+M+"*"),_=new RegExp("^"+M+"*([>+~]|"+M+")"+M+"*"),z=new RegExp("="+M+"*([^\\]'\"]*?)"+M+"*\\]","g"),X=new RegExp(W),U=new RegExp("^"+R+"$"),V={ID:new RegExp("^#("+R+")"),CLASS:new RegExp("^\\.("+R+")"),TAG:new RegExp("^("+R+"|[*])"),ATTR:new RegExp("^"+I),PSEUDO:new RegExp("^"+W),CHILD:new RegExp("^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\("+M+"*(even|odd|(([+-]|)(\\d*)n|)"+M+"*(?:([+-]|)"+M+"*(\\d+)|))"+M+"*\\)|)","i"),bool:new RegExp("^(?:"+P+")$","i"),needsContext:new RegExp("^"+M+"*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\("+M+"*((?:-\\d)?\\d*)"+M+"*\\)|)(?=[^-]|$)","i")},G=/^(?:input|select|textarea|button)$/i,Y=/^h\d$/i,Q=/^[^{]+\{\s*\[native \w/,J=/^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,K=/[+~]/,Z=new RegExp("\\\\([\\da-f]{1,6}"+M+"?|("+M+")|.)","ig"),ee=function(e,t,n){var r="0x"+t-65536;return r!==r||n?t:r<0?String.fromCharCode(r+65536):String.fromCharCode(r>>10|55296,1023&r|56320)},te=/([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,ne=function(e,t){return t?"\0"===e?"\ufffd":e.slice(0,-1)+"\\"+e.charCodeAt(e.length-1).toString(16)+" ":"\\"+e},re=function(){p()},ie=me(function(e){return!0===e.disabled&&("form"in e||"label"in e)},{dir:"parentNode",next:"legend"});try{L.apply(A=H.call(w.childNodes),w.childNodes),A[w.childNodes.length].nodeType}catch(e){L={apply:A.length?function(e,t){q.apply(e,H.call(t))}:function(e,t){var n=e.length,r=0;while(e[n++]=t[r++]);e.length=n-1}}}function oe(e,t,r,i){var o,s,l,c,f,h,v,m=t&&t.ownerDocument,T=t?t.nodeType:9;if(r=r||[],"string"!=typeof e||!e||1!==T&&9!==T&&11!==T)return r;if(!i&&((t?t.ownerDocument||t:w)!==d&&p(t),t=t||d,g)){if(11!==T&&(f=J.exec(e)))if(o=f[1]){if(9===T){if(!(l=t.getElementById(o)))return r;if(l.id===o)return r.push(l),r}else if(m&&(l=m.getElementById(o))&&x(t,l)&&l.id===o)return r.push(l),r}else{if(f[2])return L.apply(r,t.getElementsByTagName(e)),r;if((o=f[3])&&n.getElementsByClassName&&t.getElementsByClassName)return L.apply(r,t.getElementsByClassName(o)),r}if(n.qsa&&!S[e+" "]&&(!y||!y.test(e))){if(1!==T)m=t,v=e;else if("object"!==t.nodeName.toLowerCase()){(c=t.getAttribute("id"))?c=c.replace(te,ne):t.setAttribute("id",c=b),s=(h=a(e)).length;while(s--)h[s]="#"+c+" "+ve(h[s]);v=h.join(","),m=K.test(e)&&ge(t.parentNode)||t}if(v)try{return L.apply(r,m.querySelectorAll(v)),r}catch(e){}finally{c===b&&t.removeAttribute("id")}}}return u(e.replace(B,"$1"),t,r,i)}function ae(){var e=[];function t(n,i){return e.push(n+" ")>r.cacheLength&&delete t[e.shift()],t[n+" "]=i}return t}function se(e){return e[b]=!0,e}function ue(e){var t=d.createElement("fieldset");try{return!!e(t)}catch(e){return!1}finally{t.parentNode&&t.parentNode.removeChild(t),t=null}}function le(e,t){var n=e.split("|"),i=n.length;while(i--)r.attrHandle[n[i]]=t}function ce(e,t){var n=t&&e,r=n&&1===e.nodeType&&1===t.nodeType&&e.sourceIndex-t.sourceIndex;if(r)return r;if(n)while(n=n.nextSibling)if(n===t)return-1;return e?1:-1}function fe(e){return function(t){return"input"===t.nodeName.toLowerCase()&&t.type===e}}function pe(e){return function(t){var n=t.nodeName.toLowerCase();return("input"===n||"button"===n)&&t.type===e}}function de(e){return function(t){return"form"in t?t.parentNode&&!1===t.disabled?"label"in t?"label"in t.parentNode?t.parentNode.disabled===e:t.disabled===e:t.isDisabled===e||t.isDisabled!==!e&&ie(t)===e:t.disabled===e:"label"in t&&t.disabled===e}}function he(e){return se(function(t){return t=+t,se(function(n,r){var i,o=e([],n.length,t),a=o.length;while(a--)n[i=o[a]]&&(n[i]=!(r[i]=n[i]))})})}function ge(e){return e&&"undefined"!=typeof e.getElementsByTagName&&e}n=oe.support={},o=oe.isXML=function(e){var t=e&&(e.ownerDocument||e).documentElement;return!!t&&"HTML"!==t.nodeName},p=oe.setDocument=function(e){var t,i,a=e?e.ownerDocument||e:w;return a!==d&&9===a.nodeType&&a.documentElement?(d=a,h=d.documentElement,g=!o(d),w!==d&&(i=d.defaultView)&&i.top!==i&&(i.addEventListener?i.addEventListener("unload",re,!1):i.attachEvent&&i.attachEvent("onunload",re)),n.attributes=ue(function(e){return e.className="i",!e.getAttribute("className")}),n.getElementsByTagName=ue(function(e){return e.appendChild(d.createComment("")),!e.getElementsByTagName("*").length}),n.getElementsByClassName=Q.test(d.getElementsByClassName),n.getById=ue(function(e){return h.appendChild(e).id=b,!d.getElementsByName||!d.getElementsByName(b).length}),n.getById?(r.filter.ID=function(e){var t=e.replace(Z,ee);return function(e){return e.getAttribute("id")===t}},r.find.ID=function(e,t){if("undefined"!=typeof t.getElementById&&g){var n=t.getElementById(e);return n?[n]:[]}}):(r.filter.ID=function(e){var t=e.replace(Z,ee);return function(e){var n="undefined"!=typeof e.getAttributeNode&&e.getAttributeNode("id");return n&&n.value===t}},r.find.ID=function(e,t){if("undefined"!=typeof t.getElementById&&g){var n,r,i,o=t.getElementById(e);if(o){if((n=o.getAttributeNode("id"))&&n.value===e)return[o];i=t.getElementsByName(e),r=0;while(o=i[r++])if((n=o.getAttributeNode("id"))&&n.value===e)return[o]}return[]}}),r.find.TAG=n.getElementsByTagName?function(e,t){return"undefined"!=typeof t.getElementsByTagName?t.getElementsByTagName(e):n.qsa?t.querySelectorAll(e):void 0}:function(e,t){var n,r=[],i=0,o=t.getElementsByTagName(e);if("*"===e){while(n=o[i++])1===n.nodeType&&r.push(n);return r}return o},r.find.CLASS=n.getElementsByClassName&&function(e,t){if("undefined"!=typeof t.getElementsByClassName&&g)return t.getElementsByClassName(e)},v=[],y=[],(n.qsa=Q.test(d.querySelectorAll))&&(ue(function(e){h.appendChild(e).innerHTML="<a id='"+b+"'></a><select id='"+b+"-\r\\' msallowcapture=''><option selected=''></option></select>",e.querySelectorAll("[msallowcapture^='']").length&&y.push("[*^$]="+M+"*(?:''|\"\")"),e.querySelectorAll("[selected]").length||y.push("\\["+M+"*(?:value|"+P+")"),e.querySelectorAll("[id~="+b+"-]").length||y.push("~="),e.querySelectorAll(":checked").length||y.push(":checked"),e.querySelectorAll("a#"+b+"+*").length||y.push(".#.+[+~]")}),ue(function(e){e.innerHTML="<a href='' disabled='disabled'></a><select disabled='disabled'><option/></select>";var t=d.createElement("input");t.setAttribute("type","hidden"),e.appendChild(t).setAttribute("name","D"),e.querySelectorAll("[name=d]").length&&y.push("name"+M+"*[*^$|!~]?="),2!==e.querySelectorAll(":enabled").length&&y.push(":enabled",":disabled"),h.appendChild(e).disabled=!0,2!==e.querySelectorAll(":disabled").length&&y.push(":enabled",":disabled"),e.querySelectorAll("*,:x"),y.push(",.*:")})),(n.matchesSelector=Q.test(m=h.matches||h.webkitMatchesSelector||h.mozMatchesSelector||h.oMatchesSelector||h.msMatchesSelector))&&ue(function(e){n.disconnectedMatch=m.call(e,"*"),m.call(e,"[s!='']:x"),v.push("!=",W)}),y=y.length&&new RegExp(y.join("|")),v=v.length&&new RegExp(v.join("|")),t=Q.test(h.compareDocumentPosition),x=t||Q.test(h.contains)?function(e,t){var n=9===e.nodeType?e.documentElement:e,r=t&&t.parentNode;return e===r||!(!r||1!==r.nodeType||!(n.contains?n.contains(r):e.compareDocumentPosition&&16&e.compareDocumentPosition(r)))}:function(e,t){if(t)while(t=t.parentNode)if(t===e)return!0;return!1},D=t?function(e,t){if(e===t)return f=!0,0;var r=!e.compareDocumentPosition-!t.compareDocumentPosition;return r||(1&(r=(e.ownerDocument||e)===(t.ownerDocument||t)?e.compareDocumentPosition(t):1)||!n.sortDetached&&t.compareDocumentPosition(e)===r?e===d||e.ownerDocument===w&&x(w,e)?-1:t===d||t.ownerDocument===w&&x(w,t)?1:c?O(c,e)-O(c,t):0:4&r?-1:1)}:function(e,t){if(e===t)return f=!0,0;var n,r=0,i=e.parentNode,o=t.parentNode,a=[e],s=[t];if(!i||!o)return e===d?-1:t===d?1:i?-1:o?1:c?O(c,e)-O(c,t):0;if(i===o)return ce(e,t);n=e;while(n=n.parentNode)a.unshift(n);n=t;while(n=n.parentNode)s.unshift(n);while(a[r]===s[r])r++;return r?ce(a[r],s[r]):a[r]===w?-1:s[r]===w?1:0},d):d},oe.matches=function(e,t){return oe(e,null,null,t)},oe.matchesSelector=function(e,t){if((e.ownerDocument||e)!==d&&p(e),t=t.replace(z,"='$1']"),n.matchesSelector&&g&&!S[t+" "]&&(!v||!v.test(t))&&(!y||!y.test(t)))try{var r=m.call(e,t);if(r||n.disconnectedMatch||e.document&&11!==e.document.nodeType)return r}catch(e){}return oe(t,d,null,[e]).length>0},oe.contains=function(e,t){return(e.ownerDocument||e)!==d&&p(e),x(e,t)},oe.attr=function(e,t){(e.ownerDocument||e)!==d&&p(e);var i=r.attrHandle[t.toLowerCase()],o=i&&N.call(r.attrHandle,t.toLowerCase())?i(e,t,!g):void 0;return void 0!==o?o:n.attributes||!g?e.getAttribute(t):(o=e.getAttributeNode(t))&&o.specified?o.value:null},oe.escape=function(e){return(e+"").replace(te,ne)},oe.error=function(e){throw new Error("Syntax error, unrecognized expression: "+e)},oe.uniqueSort=function(e){var t,r=[],i=0,o=0;if(f=!n.detectDuplicates,c=!n.sortStable&&e.slice(0),e.sort(D),f){while(t=e[o++])t===e[o]&&(i=r.push(o));while(i--)e.splice(r[i],1)}return c=null,e},i=oe.getText=function(e){var t,n="",r=0,o=e.nodeType;if(o){if(1===o||9===o||11===o){if("string"==typeof e.textContent)return e.textContent;for(e=e.firstChild;e;e=e.nextSibling)n+=i(e)}else if(3===o||4===o)return e.nodeValue}else while(t=e[r++])n+=i(t);return n},(r=oe.selectors={cacheLength:50,createPseudo:se,match:V,attrHandle:{},find:{},relative:{">":{dir:"parentNode",first:!0}," ":{dir:"parentNode"},"+":{dir:"previousSibling",first:!0},"~":{dir:"previousSibling"}},preFilter:{ATTR:function(e){return e[1]=e[1].replace(Z,ee),e[3]=(e[3]||e[4]||e[5]||"").replace(Z,ee),"~="===e[2]&&(e[3]=" "+e[3]+" "),e.slice(0,4)},CHILD:function(e){return e[1]=e[1].toLowerCase(),"nth"===e[1].slice(0,3)?(e[3]||oe.error(e[0]),e[4]=+(e[4]?e[5]+(e[6]||1):2*("even"===e[3]||"odd"===e[3])),e[5]=+(e[7]+e[8]||"odd"===e[3])):e[3]&&oe.error(e[0]),e},PSEUDO:function(e){var t,n=!e[6]&&e[2];return V.CHILD.test(e[0])?null:(e[3]?e[2]=e[4]||e[5]||"":n&&X.test(n)&&(t=a(n,!0))&&(t=n.indexOf(")",n.length-t)-n.length)&&(e[0]=e[0].slice(0,t),e[2]=n.slice(0,t)),e.slice(0,3))}},filter:{TAG:function(e){var t=e.replace(Z,ee).toLowerCase();return"*"===e?function(){return!0}:function(e){return e.nodeName&&e.nodeName.toLowerCase()===t}},CLASS:function(e){var t=E[e+" "];return t||(t=new RegExp("(^|"+M+")"+e+"("+M+"|$)"))&&E(e,function(e){return t.test("string"==typeof e.className&&e.className||"undefined"!=typeof e.getAttribute&&e.getAttribute("class")||"")})},ATTR:function(e,t,n){return function(r){var i=oe.attr(r,e);return null==i?"!="===t:!t||(i+="","="===t?i===n:"!="===t?i!==n:"^="===t?n&&0===i.indexOf(n):"*="===t?n&&i.indexOf(n)>-1:"$="===t?n&&i.slice(-n.length)===n:"~="===t?(" "+i.replace($," ")+" ").indexOf(n)>-1:"|="===t&&(i===n||i.slice(0,n.length+1)===n+"-"))}},CHILD:function(e,t,n,r,i){var o="nth"!==e.slice(0,3),a="last"!==e.slice(-4),s="of-type"===t;return 1===r&&0===i?function(e){return!!e.parentNode}:function(t,n,u){var l,c,f,p,d,h,g=o!==a?"nextSibling":"previousSibling",y=t.parentNode,v=s&&t.nodeName.toLowerCase(),m=!u&&!s,x=!1;if(y){if(o){while(g){p=t;while(p=p[g])if(s?p.nodeName.toLowerCase()===v:1===p.nodeType)return!1;h=g="only"===e&&!h&&"nextSibling"}return!0}if(h=[a?y.firstChild:y.lastChild],a&&m){x=(d=(l=(c=(f=(p=y)[b]||(p[b]={}))[p.uniqueID]||(f[p.uniqueID]={}))[e]||[])[0]===T&&l[1])&&l[2],p=d&&y.childNodes[d];while(p=++d&&p&&p[g]||(x=d=0)||h.pop())if(1===p.nodeType&&++x&&p===t){c[e]=[T,d,x];break}}else if(m&&(x=d=(l=(c=(f=(p=t)[b]||(p[b]={}))[p.uniqueID]||(f[p.uniqueID]={}))[e]||[])[0]===T&&l[1]),!1===x)while(p=++d&&p&&p[g]||(x=d=0)||h.pop())if((s?p.nodeName.toLowerCase()===v:1===p.nodeType)&&++x&&(m&&((c=(f=p[b]||(p[b]={}))[p.uniqueID]||(f[p.uniqueID]={}))[e]=[T,x]),p===t))break;return(x-=i)===r||x%r==0&&x/r>=0}}},PSEUDO:function(e,t){var n,i=r.pseudos[e]||r.setFilters[e.toLowerCase()]||oe.error("unsupported pseudo: "+e);return i[b]?i(t):i.length>1?(n=[e,e,"",t],r.setFilters.hasOwnProperty(e.toLowerCase())?se(function(e,n){var r,o=i(e,t),a=o.length;while(a--)e[r=O(e,o[a])]=!(n[r]=o[a])}):function(e){return i(e,0,n)}):i}},pseudos:{not:se(function(e){var t=[],n=[],r=s(e.replace(B,"$1"));return r[b]?se(function(e,t,n,i){var o,a=r(e,null,i,[]),s=e.length;while(s--)(o=a[s])&&(e[s]=!(t[s]=o))}):function(e,i,o){return t[0]=e,r(t,null,o,n),t[0]=null,!n.pop()}}),has:se(function(e){return function(t){return oe(e,t).length>0}}),contains:se(function(e){return e=e.replace(Z,ee),function(t){return(t.textContent||t.innerText||i(t)).indexOf(e)>-1}}),lang:se(function(e){return U.test(e||"")||oe.error("unsupported lang: "+e),e=e.replace(Z,ee).toLowerCase(),function(t){var n;do{if(n=g?t.lang:t.getAttribute("xml:lang")||t.getAttribute("lang"))return(n=n.toLowerCase())===e||0===n.indexOf(e+"-")}while((t=t.parentNode)&&1===t.nodeType);return!1}}),target:function(t){var n=e.location&&e.location.hash;return n&&n.slice(1)===t.id},root:function(e){return e===h},focus:function(e){return e===d.activeElement&&(!d.hasFocus||d.hasFocus())&&!!(e.type||e.href||~e.tabIndex)},enabled:de(!1),disabled:de(!0),checked:function(e){var t=e.nodeName.toLowerCase();return"input"===t&&!!e.checked||"option"===t&&!!e.selected},selected:function(e){return e.parentNode&&e.parentNode.selectedIndex,!0===e.selected},empty:function(e){for(e=e.firstChild;e;e=e.nextSibling)if(e.nodeType<6)return!1;return!0},parent:function(e){return!r.pseudos.empty(e)},header:function(e){return Y.test(e.nodeName)},input:function(e){return G.test(e.nodeName)},button:function(e){var t=e.nodeName.toLowerCase();return"input"===t&&"button"===e.type||"button"===t},text:function(e){var t;return"input"===e.nodeName.toLowerCase()&&"text"===e.type&&(null==(t=e.getAttribute("type"))||"text"===t.toLowerCase())},first:he(function(){return[0]}),last:he(function(e,t){return[t-1]}),eq:he(function(e,t,n){return[n<0?n+t:n]}),even:he(function(e,t){for(var n=0;n<t;n+=2)e.push(n);return e}),odd:he(function(e,t){for(var n=1;n<t;n+=2)e.push(n);return e}),lt:he(function(e,t,n){for(var r=n<0?n+t:n;--r>=0;)e.push(r);return e}),gt:he(function(e,t,n){for(var r=n<0?n+t:n;++r<t;)e.push(r);return e})}}).pseudos.nth=r.pseudos.eq;for(t in{radio:!0,checkbox:!0,file:!0,password:!0,image:!0})r.pseudos[t]=fe(t);for(t in{submit:!0,reset:!0})r.pseudos[t]=pe(t);function ye(){}ye.prototype=r.filters=r.pseudos,r.setFilters=new ye,a=oe.tokenize=function(e,t){var n,i,o,a,s,u,l,c=k[e+" "];if(c)return t?0:c.slice(0);s=e,u=[],l=r.preFilter;while(s){n&&!(i=F.exec(s))||(i&&(s=s.slice(i[0].length)||s),u.push(o=[])),n=!1,(i=_.exec(s))&&(n=i.shift(),o.push({value:n,type:i[0].replace(B," ")}),s=s.slice(n.length));for(a in r.filter)!(i=V[a].exec(s))||l[a]&&!(i=l[a](i))||(n=i.shift(),o.push({value:n,type:a,matches:i}),s=s.slice(n.length));if(!n)break}return t?s.length:s?oe.error(e):k(e,u).slice(0)};function ve(e){for(var t=0,n=e.length,r="";t<n;t++)r+=e[t].value;return r}function me(e,t,n){var r=t.dir,i=t.next,o=i||r,a=n&&"parentNode"===o,s=C++;return t.first?function(t,n,i){while(t=t[r])if(1===t.nodeType||a)return e(t,n,i);return!1}:function(t,n,u){var l,c,f,p=[T,s];if(u){while(t=t[r])if((1===t.nodeType||a)&&e(t,n,u))return!0}else while(t=t[r])if(1===t.nodeType||a)if(f=t[b]||(t[b]={}),c=f[t.uniqueID]||(f[t.uniqueID]={}),i&&i===t.nodeName.toLowerCase())t=t[r]||t;else{if((l=c[o])&&l[0]===T&&l[1]===s)return p[2]=l[2];if(c[o]=p,p[2]=e(t,n,u))return!0}return!1}}function xe(e){return e.length>1?function(t,n,r){var i=e.length;while(i--)if(!e[i](t,n,r))return!1;return!0}:e[0]}function be(e,t,n){for(var r=0,i=t.length;r<i;r++)oe(e,t[r],n);return n}function we(e,t,n,r,i){for(var o,a=[],s=0,u=e.length,l=null!=t;s<u;s++)(o=e[s])&&(n&&!n(o,r,i)||(a.push(o),l&&t.push(s)));return a}function Te(e,t,n,r,i,o){return r&&!r[b]&&(r=Te(r)),i&&!i[b]&&(i=Te(i,o)),se(function(o,a,s,u){var l,c,f,p=[],d=[],h=a.length,g=o||be(t||"*",s.nodeType?[s]:s,[]),y=!e||!o&&t?g:we(g,p,e,s,u),v=n?i||(o?e:h||r)?[]:a:y;if(n&&n(y,v,s,u),r){l=we(v,d),r(l,[],s,u),c=l.length;while(c--)(f=l[c])&&(v[d[c]]=!(y[d[c]]=f))}if(o){if(i||e){if(i){l=[],c=v.length;while(c--)(f=v[c])&&l.push(y[c]=f);i(null,v=[],l,u)}c=v.length;while(c--)(f=v[c])&&(l=i?O(o,f):p[c])>-1&&(o[l]=!(a[l]=f))}}else v=we(v===a?v.splice(h,v.length):v),i?i(null,a,v,u):L.apply(a,v)})}function Ce(e){for(var t,n,i,o=e.length,a=r.relative[e[0].type],s=a||r.relative[" "],u=a?1:0,c=me(function(e){return e===t},s,!0),f=me(function(e){return O(t,e)>-1},s,!0),p=[function(e,n,r){var i=!a&&(r||n!==l)||((t=n).nodeType?c(e,n,r):f(e,n,r));return t=null,i}];u<o;u++)if(n=r.relative[e[u].type])p=[me(xe(p),n)];else{if((n=r.filter[e[u].type].apply(null,e[u].matches))[b]){for(i=++u;i<o;i++)if(r.relative[e[i].type])break;return Te(u>1&&xe(p),u>1&&ve(e.slice(0,u-1).concat({value:" "===e[u-2].type?"*":""})).replace(B,"$1"),n,u<i&&Ce(e.slice(u,i)),i<o&&Ce(e=e.slice(i)),i<o&&ve(e))}p.push(n)}return xe(p)}function Ee(e,t){var n=t.length>0,i=e.length>0,o=function(o,a,s,u,c){var f,h,y,v=0,m="0",x=o&&[],b=[],w=l,C=o||i&&r.find.TAG("*",c),E=T+=null==w?1:Math.random()||.1,k=C.length;for(c&&(l=a===d||a||c);m!==k&&null!=(f=C[m]);m++){if(i&&f){h=0,a||f.ownerDocument===d||(p(f),s=!g);while(y=e[h++])if(y(f,a||d,s)){u.push(f);break}c&&(T=E)}n&&((f=!y&&f)&&v--,o&&x.push(f))}if(v+=m,n&&m!==v){h=0;while(y=t[h++])y(x,b,a,s);if(o){if(v>0)while(m--)x[m]||b[m]||(b[m]=j.call(u));b=we(b)}L.apply(u,b),c&&!o&&b.length>0&&v+t.length>1&&oe.uniqueSort(u)}return c&&(T=E,l=w),x};return n?se(o):o}return s=oe.compile=function(e,t){var n,r=[],i=[],o=S[e+" "];if(!o){t||(t=a(e)),n=t.length;while(n--)(o=Ce(t[n]))[b]?r.push(o):i.push(o);(o=S(e,Ee(i,r))).selector=e}return o},u=oe.select=function(e,t,n,i){var o,u,l,c,f,p="function"==typeof e&&e,d=!i&&a(e=p.selector||e);if(n=n||[],1===d.length){if((u=d[0]=d[0].slice(0)).length>2&&"ID"===(l=u[0]).type&&9===t.nodeType&&g&&r.relative[u[1].type]){if(!(t=(r.find.ID(l.matches[0].replace(Z,ee),t)||[])[0]))return n;p&&(t=t.parentNode),e=e.slice(u.shift().value.length)}o=V.needsContext.test(e)?0:u.length;while(o--){if(l=u[o],r.relative[c=l.type])break;if((f=r.find[c])&&(i=f(l.matches[0].replace(Z,ee),K.test(u[0].type)&&ge(t.parentNode)||t))){if(u.splice(o,1),!(e=i.length&&ve(u)))return L.apply(n,i),n;break}}}return(p||s(e,d))(i,t,!g,n,!t||K.test(e)&&ge(t.parentNode)||t),n},n.sortStable=b.split("").sort(D).join("")===b,n.detectDuplicates=!!f,p(),n.sortDetached=ue(function(e){return 1&e.compareDocumentPosition(d.createElement("fieldset"))}),ue(function(e){return e.innerHTML="<a href='#'></a>","#"===e.firstChild.getAttribute("href")})||le("type|href|height|width",function(e,t,n){if(!n)return e.getAttribute(t,"type"===t.toLowerCase()?1:2)}),n.attributes&&ue(function(e){return e.innerHTML="<input/>",e.firstChild.setAttribute("value",""),""===e.firstChild.getAttribute("value")})||le("value",function(e,t,n){if(!n&&"input"===e.nodeName.toLowerCase())return e.defaultValue}),ue(function(e){return null==e.getAttribute("disabled")})||le(P,function(e,t,n){var r;if(!n)return!0===e[t]?t.toLowerCase():(r=e.getAttributeNode(t))&&r.specified?r.value:null}),oe}(e);w.find=E,w.expr=E.selectors,w.expr[":"]=w.expr.pseudos,w.uniqueSort=w.unique=E.uniqueSort,w.text=E.getText,w.isXMLDoc=E.isXML,w.contains=E.contains,w.escapeSelector=E.escape;var k=function(e,t,n){var r=[],i=void 0!==n;while((e=e[t])&&9!==e.nodeType)if(1===e.nodeType){if(i&&w(e).is(n))break;r.push(e)}return r},S=function(e,t){for(var n=[];e;e=e.nextSibling)1===e.nodeType&&e!==t&&n.push(e);return n},D=w.expr.match.needsContext;function N(e,t){return e.nodeName&&e.nodeName.toLowerCase()===t.toLowerCase()}var A=/^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i;function j(e,t,n){return g(t)?w.grep(e,function(e,r){return!!t.call(e,r,e)!==n}):t.nodeType?w.grep(e,function(e){return e===t!==n}):"string"!=typeof t?w.grep(e,function(e){return u.call(t,e)>-1!==n}):w.filter(t,e,n)}w.filter=function(e,t,n){var r=t[0];return n&&(e=":not("+e+")"),1===t.length&&1===r.nodeType?w.find.matchesSelector(r,e)?[r]:[]:w.find.matches(e,w.grep(t,function(e){return 1===e.nodeType}))},w.fn.extend({find:function(e){var t,n,r=this.length,i=this;if("string"!=typeof e)return this.pushStack(w(e).filter(function(){for(t=0;t<r;t++)if(w.contains(i[t],this))return!0}));for(n=this.pushStack([]),t=0;t<r;t++)w.find(e,i[t],n);return r>1?w.uniqueSort(n):n},filter:function(e){return this.pushStack(j(this,e||[],!1))},not:function(e){return this.pushStack(j(this,e||[],!0))},is:function(e){return!!j(this,"string"==typeof e&&D.test(e)?w(e):e||[],!1).length}});var q,L=/^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/;(w.fn.init=function(e,t,n){var i,o;if(!e)return this;if(n=n||q,"string"==typeof e){if(!(i="<"===e[0]&&">"===e[e.length-1]&&e.length>=3?[null,e,null]:L.exec(e))||!i[1]&&t)return!t||t.jquery?(t||n).find(e):this.constructor(t).find(e);if(i[1]){if(t=t instanceof w?t[0]:t,w.merge(this,w.parseHTML(i[1],t&&t.nodeType?t.ownerDocument||t:r,!0)),A.test(i[1])&&w.isPlainObject(t))for(i in t)g(this[i])?this[i](t[i]):this.attr(i,t[i]);return this}return(o=r.getElementById(i[2]))&&(this[0]=o,this.length=1),this}return e.nodeType?(this[0]=e,this.length=1,this):g(e)?void 0!==n.ready?n.ready(e):e(w):w.makeArray(e,this)}).prototype=w.fn,q=w(r);var H=/^(?:parents|prev(?:Until|All))/,O={children:!0,contents:!0,next:!0,prev:!0};w.fn.extend({has:function(e){var t=w(e,this),n=t.length;return this.filter(function(){for(var e=0;e<n;e++)if(w.contains(this,t[e]))return!0})},closest:function(e,t){var n,r=0,i=this.length,o=[],a="string"!=typeof e&&w(e);if(!D.test(e))for(;r<i;r++)for(n=this[r];n&&n!==t;n=n.parentNode)if(n.nodeType<11&&(a?a.index(n)>-1:1===n.nodeType&&w.find.matchesSelector(n,e))){o.push(n);break}return this.pushStack(o.length>1?w.uniqueSort(o):o)},index:function(e){return e?"string"==typeof e?u.call(w(e),this[0]):u.call(this,e.jquery?e[0]:e):this[0]&&this[0].parentNode?this.first().prevAll().length:-1},add:function(e,t){return this.pushStack(w.uniqueSort(w.merge(this.get(),w(e,t))))},addBack:function(e){return this.add(null==e?this.prevObject:this.prevObject.filter(e))}});function P(e,t){while((e=e[t])&&1!==e.nodeType);return e}w.each({parent:function(e){var t=e.parentNode;return t&&11!==t.nodeType?t:null},parents:function(e){return k(e,"parentNode")},parentsUntil:function(e,t,n){return k(e,"parentNode",n)},next:function(e){return P(e,"nextSibling")},prev:function(e){return P(e,"previousSibling")},nextAll:function(e){return k(e,"nextSibling")},prevAll:function(e){return k(e,"previousSibling")},nextUntil:function(e,t,n){return k(e,"nextSibling",n)},prevUntil:function(e,t,n){return k(e,"previousSibling",n)},siblings:function(e){return S((e.parentNode||{}).firstChild,e)},children:function(e){return S(e.firstChild)},contents:function(e){return N(e,"iframe")?e.contentDocument:(N(e,"template")&&(e=e.content||e),w.merge([],e.childNodes))}},function(e,t){w.fn[e]=function(n,r){var i=w.map(this,t,n);return"Until"!==e.slice(-5)&&(r=n),r&&"string"==typeof r&&(i=w.filter(r,i)),this.length>1&&(O[e]||w.uniqueSort(i),H.test(e)&&i.reverse()),this.pushStack(i)}});var M=/[^\x20\t\r\n\f]+/g;function R(e){var t={};return w.each(e.match(M)||[],function(e,n){t[n]=!0}),t}w.Callbacks=function(e){e="string"==typeof e?R(e):w.extend({},e);var t,n,r,i,o=[],a=[],s=-1,u=function(){for(i=i||e.once,r=t=!0;a.length;s=-1){n=a.shift();while(++s<o.length)!1===o[s].apply(n[0],n[1])&&e.stopOnFalse&&(s=o.length,n=!1)}e.memory||(n=!1),t=!1,i&&(o=n?[]:"")},l={add:function(){return o&&(n&&!t&&(s=o.length-1,a.push(n)),function t(n){w.each(n,function(n,r){g(r)?e.unique&&l.has(r)||o.push(r):r&&r.length&&"string"!==x(r)&&t(r)})}(arguments),n&&!t&&u()),this},remove:function(){return w.each(arguments,function(e,t){var n;while((n=w.inArray(t,o,n))>-1)o.splice(n,1),n<=s&&s--}),this},has:function(e){return e?w.inArray(e,o)>-1:o.length>0},empty:function(){return o&&(o=[]),this},disable:function(){return i=a=[],o=n="",this},disabled:function(){return!o},lock:function(){return i=a=[],n||t||(o=n=""),this},locked:function(){return!!i},fireWith:function(e,n){return i||(n=[e,(n=n||[]).slice?n.slice():n],a.push(n),t||u()),this},fire:function(){return l.fireWith(this,arguments),this},fired:function(){return!!r}};return l};function I(e){return e}function W(e){throw e}function $(e,t,n,r){var i;try{e&&g(i=e.promise)?i.call(e).done(t).fail(n):e&&g(i=e.then)?i.call(e,t,n):t.apply(void 0,[e].slice(r))}catch(e){n.apply(void 0,[e])}}w.extend({Deferred:function(t){var n=[["notify","progress",w.Callbacks("memory"),w.Callbacks("memory"),2],["resolve","done",w.Callbacks("once memory"),w.Callbacks("once memory"),0,"resolved"],["reject","fail",w.Callbacks("once memory"),w.Callbacks("once memory"),1,"rejected"]],r="pending",i={state:function(){return r},always:function(){return o.done(arguments).fail(arguments),this},"catch":function(e){return i.then(null,e)},pipe:function(){var e=arguments;return w.Deferred(function(t){w.each(n,function(n,r){var i=g(e[r[4]])&&e[r[4]];o[r[1]](function(){var e=i&&i.apply(this,arguments);e&&g(e.promise)?e.promise().progress(t.notify).done(t.resolve).fail(t.reject):t[r[0]+"With"](this,i?[e]:arguments)})}),e=null}).promise()},then:function(t,r,i){var o=0;function a(t,n,r,i){return function(){var s=this,u=arguments,l=function(){var e,l;if(!(t<o)){if((e=r.apply(s,u))===n.promise())throw new TypeError("Thenable self-resolution");l=e&&("object"==typeof e||"function"==typeof e)&&e.then,g(l)?i?l.call(e,a(o,n,I,i),a(o,n,W,i)):(o++,l.call(e,a(o,n,I,i),a(o,n,W,i),a(o,n,I,n.notifyWith))):(r!==I&&(s=void 0,u=[e]),(i||n.resolveWith)(s,u))}},c=i?l:function(){try{l()}catch(e){w.Deferred.exceptionHook&&w.Deferred.exceptionHook(e,c.stackTrace),t+1>=o&&(r!==W&&(s=void 0,u=[e]),n.rejectWith(s,u))}};t?c():(w.Deferred.getStackHook&&(c.stackTrace=w.Deferred.getStackHook()),e.setTimeout(c))}}return w.Deferred(function(e){n[0][3].add(a(0,e,g(i)?i:I,e.notifyWith)),n[1][3].add(a(0,e,g(t)?t:I)),n[2][3].add(a(0,e,g(r)?r:W))}).promise()},promise:function(e){return null!=e?w.extend(e,i):i}},o={};return w.each(n,function(e,t){var a=t[2],s=t[5];i[t[1]]=a.add,s&&a.add(function(){r=s},n[3-e][2].disable,n[3-e][3].disable,n[0][2].lock,n[0][3].lock),a.add(t[3].fire),o[t[0]]=function(){return o[t[0]+"With"](this===o?void 0:this,arguments),this},o[t[0]+"With"]=a.fireWith}),i.promise(o),t&&t.call(o,o),o},when:function(e){var t=arguments.length,n=t,r=Array(n),i=o.call(arguments),a=w.Deferred(),s=function(e){return function(n){r[e]=this,i[e]=arguments.length>1?o.call(arguments):n,--t||a.resolveWith(r,i)}};if(t<=1&&($(e,a.done(s(n)).resolve,a.reject,!t),"pending"===a.state()||g(i[n]&&i[n].then)))return a.then();while(n--)$(i[n],s(n),a.reject);return a.promise()}});var B=/^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;w.Deferred.exceptionHook=function(t,n){e.console&&e.console.warn&&t&&B.test(t.name)&&e.console.warn("jQuery.Deferred exception: "+t.message,t.stack,n)},w.readyException=function(t){e.setTimeout(function(){throw t})};var F=w.Deferred();w.fn.ready=function(e){return F.then(e)["catch"](function(e){w.readyException(e)}),this},w.extend({isReady:!1,readyWait:1,ready:function(e){(!0===e?--w.readyWait:w.isReady)||(w.isReady=!0,!0!==e&&--w.readyWait>0||F.resolveWith(r,[w]))}}),w.ready.then=F.then;function _(){r.removeEventListener("DOMContentLoaded",_),e.removeEventListener("load",_),w.ready()}"complete"===r.readyState||"loading"!==r.readyState&&!r.documentElement.doScroll?e.setTimeout(w.ready):(r.addEventListener("DOMContentLoaded",_),e.addEventListener("load",_));var z=function(e,t,n,r,i,o,a){var s=0,u=e.length,l=null==n;if("object"===x(n)){i=!0;for(s in n)z(e,t,s,n[s],!0,o,a)}else if(void 0!==r&&(i=!0,g(r)||(a=!0),l&&(a?(t.call(e,r),t=null):(l=t,t=function(e,t,n){return l.call(w(e),n)})),t))for(;s<u;s++)t(e[s],n,a?r:r.call(e[s],s,t(e[s],n)));return i?e:l?t.call(e):u?t(e[0],n):o},X=/^-ms-/,U=/-([a-z])/g;function V(e,t){return t.toUpperCase()}function G(e){return e.replace(X,"ms-").replace(U,V)}var Y=function(e){return 1===e.nodeType||9===e.nodeType||!+e.nodeType};function Q(){this.expando=w.expando+Q.uid++}Q.uid=1,Q.prototype={cache:function(e){var t=e[this.expando];return t||(t={},Y(e)&&(e.nodeType?e[this.expando]=t:Object.defineProperty(e,this.expando,{value:t,configurable:!0}))),t},set:function(e,t,n){var r,i=this.cache(e);if("string"==typeof t)i[G(t)]=n;else for(r in t)i[G(r)]=t[r];return i},get:function(e,t){return void 0===t?this.cache(e):e[this.expando]&&e[this.expando][G(t)]},access:function(e,t,n){return void 0===t||t&&"string"==typeof t&&void 0===n?this.get(e,t):(this.set(e,t,n),void 0!==n?n:t)},remove:function(e,t){var n,r=e[this.expando];if(void 0!==r){if(void 0!==t){n=(t=Array.isArray(t)?t.map(G):(t=G(t))in r?[t]:t.match(M)||[]).length;while(n--)delete r[t[n]]}(void 0===t||w.isEmptyObject(r))&&(e.nodeType?e[this.expando]=void 0:delete e[this.expando])}},hasData:function(e){var t=e[this.expando];return void 0!==t&&!w.isEmptyObject(t)}};var J=new Q,K=new Q,Z=/^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,ee=/[A-Z]/g;function te(e){return"true"===e||"false"!==e&&("null"===e?null:e===+e+""?+e:Z.test(e)?JSON.parse(e):e)}function ne(e,t,n){var r;if(void 0===n&&1===e.nodeType)if(r="data-"+t.replace(ee,"-$&").toLowerCase(),"string"==typeof(n=e.getAttribute(r))){try{n=te(n)}catch(e){}K.set(e,t,n)}else n=void 0;return n}w.extend({hasData:function(e){return K.hasData(e)||J.hasData(e)},data:function(e,t,n){return K.access(e,t,n)},removeData:function(e,t){K.remove(e,t)},_data:function(e,t,n){return J.access(e,t,n)},_removeData:function(e,t){J.remove(e,t)}}),w.fn.extend({data:function(e,t){var n,r,i,o=this[0],a=o&&o.attributes;if(void 0===e){if(this.length&&(i=K.get(o),1===o.nodeType&&!J.get(o,"hasDataAttrs"))){n=a.length;while(n--)a[n]&&0===(r=a[n].name).indexOf("data-")&&(r=G(r.slice(5)),ne(o,r,i[r]));J.set(o,"hasDataAttrs",!0)}return i}return"object"==typeof e?this.each(function(){K.set(this,e)}):z(this,function(t){var n;if(o&&void 0===t){if(void 0!==(n=K.get(o,e)))return n;if(void 0!==(n=ne(o,e)))return n}else this.each(function(){K.set(this,e,t)})},null,t,arguments.length>1,null,!0)},removeData:function(e){return this.each(function(){K.remove(this,e)})}}),w.extend({queue:function(e,t,n){var r;if(e)return t=(t||"fx")+"queue",r=J.get(e,t),n&&(!r||Array.isArray(n)?r=J.access(e,t,w.makeArray(n)):r.push(n)),r||[]},dequeue:function(e,t){t=t||"fx";var n=w.queue(e,t),r=n.length,i=n.shift(),o=w._queueHooks(e,t),a=function(){w.dequeue(e,t)};"inprogress"===i&&(i=n.shift(),r--),i&&("fx"===t&&n.unshift("inprogress"),delete o.stop,i.call(e,a,o)),!r&&o&&o.empty.fire()},_queueHooks:function(e,t){var n=t+"queueHooks";return J.get(e,n)||J.access(e,n,{empty:w.Callbacks("once memory").add(function(){J.remove(e,[t+"queue",n])})})}}),w.fn.extend({queue:function(e,t){var n=2;return"string"!=typeof e&&(t=e,e="fx",n--),arguments.length<n?w.queue(this[0],e):void 0===t?this:this.each(function(){var n=w.queue(this,e,t);w._queueHooks(this,e),"fx"===e&&"inprogress"!==n[0]&&w.dequeue(this,e)})},dequeue:function(e){return this.each(function(){w.dequeue(this,e)})},clearQueue:function(e){return this.queue(e||"fx",[])},promise:function(e,t){var n,r=1,i=w.Deferred(),o=this,a=this.length,s=function(){--r||i.resolveWith(o,[o])};"string"!=typeof e&&(t=e,e=void 0),e=e||"fx";while(a--)(n=J.get(o[a],e+"queueHooks"))&&n.empty&&(r++,n.empty.add(s));return s(),i.promise(t)}});var re=/[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/.source,ie=new RegExp("^(?:([+-])=|)("+re+")([a-z%]*)$","i"),oe=["Top","Right","Bottom","Left"],ae=function(e,t){return"none"===(e=t||e).style.display||""===e.style.display&&w.contains(e.ownerDocument,e)&&"none"===w.css(e,"display")},se=function(e,t,n,r){var i,o,a={};for(o in t)a[o]=e.style[o],e.style[o]=t[o];i=n.apply(e,r||[]);for(o in t)e.style[o]=a[o];return i};function ue(e,t,n,r){var i,o,a=20,s=r?function(){return r.cur()}:function(){return w.css(e,t,"")},u=s(),l=n&&n[3]||(w.cssNumber[t]?"":"px"),c=(w.cssNumber[t]||"px"!==l&&+u)&&ie.exec(w.css(e,t));if(c&&c[3]!==l){u/=2,l=l||c[3],c=+u||1;while(a--)w.style(e,t,c+l),(1-o)*(1-(o=s()/u||.5))<=0&&(a=0),c/=o;c*=2,w.style(e,t,c+l),n=n||[]}return n&&(c=+c||+u||0,i=n[1]?c+(n[1]+1)*n[2]:+n[2],r&&(r.unit=l,r.start=c,r.end=i)),i}var le={};function ce(e){var t,n=e.ownerDocument,r=e.nodeName,i=le[r];return i||(t=n.body.appendChild(n.createElement(r)),i=w.css(t,"display"),t.parentNode.removeChild(t),"none"===i&&(i="block"),le[r]=i,i)}function fe(e,t){for(var n,r,i=[],o=0,a=e.length;o<a;o++)(r=e[o]).style&&(n=r.style.display,t?("none"===n&&(i[o]=J.get(r,"display")||null,i[o]||(r.style.display="")),""===r.style.display&&ae(r)&&(i[o]=ce(r))):"none"!==n&&(i[o]="none",J.set(r,"display",n)));for(o=0;o<a;o++)null!=i[o]&&(e[o].style.display=i[o]);return e}w.fn.extend({show:function(){return fe(this,!0)},hide:function(){return fe(this)},toggle:function(e){return"boolean"==typeof e?e?this.show():this.hide():this.each(function(){ae(this)?w(this).show():w(this).hide()})}});var pe=/^(?:checkbox|radio)$/i,de=/<([a-z][^\/\0>\x20\t\r\n\f]+)/i,he=/^$|^module$|\/(?:java|ecma)script/i,ge={option:[1,"<select multiple='multiple'>","</select>"],thead:[1,"<table>","</table>"],col:[2,"<table><colgroup>","</colgroup></table>"],tr:[2,"<table><tbody>","</tbody></table>"],td:[3,"<table><tbody><tr>","</tr></tbody></table>"],_default:[0,"",""]};ge.optgroup=ge.option,ge.tbody=ge.tfoot=ge.colgroup=ge.caption=ge.thead,ge.th=ge.td;function ye(e,t){var n;return n="undefined"!=typeof e.getElementsByTagName?e.getElementsByTagName(t||"*"):"undefined"!=typeof e.querySelectorAll?e.querySelectorAll(t||"*"):[],void 0===t||t&&N(e,t)?w.merge([e],n):n}function ve(e,t){for(var n=0,r=e.length;n<r;n++)J.set(e[n],"globalEval",!t||J.get(t[n],"globalEval"))}var me=/<|&#?\w+;/;function xe(e,t,n,r,i){for(var o,a,s,u,l,c,f=t.createDocumentFragment(),p=[],d=0,h=e.length;d<h;d++)if((o=e[d])||0===o)if("object"===x(o))w.merge(p,o.nodeType?[o]:o);else if(me.test(o)){a=a||f.appendChild(t.createElement("div")),s=(de.exec(o)||["",""])[1].toLowerCase(),u=ge[s]||ge._default,a.innerHTML=u[1]+w.htmlPrefilter(o)+u[2],c=u[0];while(c--)a=a.lastChild;w.merge(p,a.childNodes),(a=f.firstChild).textContent=""}else p.push(t.createTextNode(o));f.textContent="",d=0;while(o=p[d++])if(r&&w.inArray(o,r)>-1)i&&i.push(o);else if(l=w.contains(o.ownerDocument,o),a=ye(f.appendChild(o),"script"),l&&ve(a),n){c=0;while(o=a[c++])he.test(o.type||"")&&n.push(o)}return f}!function(){var e=r.createDocumentFragment().appendChild(r.createElement("div")),t=r.createElement("input");t.setAttribute("type","radio"),t.setAttribute("checked","checked"),t.setAttribute("name","t"),e.appendChild(t),h.checkClone=e.cloneNode(!0).cloneNode(!0).lastChild.checked,e.innerHTML="<textarea>x</textarea>",h.noCloneChecked=!!e.cloneNode(!0).lastChild.defaultValue}();var be=r.documentElement,we=/^key/,Te=/^(?:mouse|pointer|contextmenu|drag|drop)|click/,Ce=/^([^.]*)(?:\.(.+)|)/;function Ee(){return!0}function ke(){return!1}function Se(){try{return r.activeElement}catch(e){}}function De(e,t,n,r,i,o){var a,s;if("object"==typeof t){"string"!=typeof n&&(r=r||n,n=void 0);for(s in t)De(e,s,n,r,t[s],o);return e}if(null==r&&null==i?(i=n,r=n=void 0):null==i&&("string"==typeof n?(i=r,r=void 0):(i=r,r=n,n=void 0)),!1===i)i=ke;else if(!i)return e;return 1===o&&(a=i,(i=function(e){return w().off(e),a.apply(this,arguments)}).guid=a.guid||(a.guid=w.guid++)),e.each(function(){w.event.add(this,t,i,r,n)})}w.event={global:{},add:function(e,t,n,r,i){var o,a,s,u,l,c,f,p,d,h,g,y=J.get(e);if(y){n.handler&&(n=(o=n).handler,i=o.selector),i&&w.find.matchesSelector(be,i),n.guid||(n.guid=w.guid++),(u=y.events)||(u=y.events={}),(a=y.handle)||(a=y.handle=function(t){return"undefined"!=typeof w&&w.event.triggered!==t.type?w.event.dispatch.apply(e,arguments):void 0}),l=(t=(t||"").match(M)||[""]).length;while(l--)d=g=(s=Ce.exec(t[l])||[])[1],h=(s[2]||"").split(".").sort(),d&&(f=w.event.special[d]||{},d=(i?f.delegateType:f.bindType)||d,f=w.event.special[d]||{},c=w.extend({type:d,origType:g,data:r,handler:n,guid:n.guid,selector:i,needsContext:i&&w.expr.match.needsContext.test(i),namespace:h.join(".")},o),(p=u[d])||((p=u[d]=[]).delegateCount=0,f.setup&&!1!==f.setup.call(e,r,h,a)||e.addEventListener&&e.addEventListener(d,a)),f.add&&(f.add.call(e,c),c.handler.guid||(c.handler.guid=n.guid)),i?p.splice(p.delegateCount++,0,c):p.push(c),w.event.global[d]=!0)}},remove:function(e,t,n,r,i){var o,a,s,u,l,c,f,p,d,h,g,y=J.hasData(e)&&J.get(e);if(y&&(u=y.events)){l=(t=(t||"").match(M)||[""]).length;while(l--)if(s=Ce.exec(t[l])||[],d=g=s[1],h=(s[2]||"").split(".").sort(),d){f=w.event.special[d]||{},p=u[d=(r?f.delegateType:f.bindType)||d]||[],s=s[2]&&new RegExp("(^|\\.)"+h.join("\\.(?:.*\\.|)")+"(\\.|$)"),a=o=p.length;while(o--)c=p[o],!i&&g!==c.origType||n&&n.guid!==c.guid||s&&!s.test(c.namespace)||r&&r!==c.selector&&("**"!==r||!c.selector)||(p.splice(o,1),c.selector&&p.delegateCount--,f.remove&&f.remove.call(e,c));a&&!p.length&&(f.teardown&&!1!==f.teardown.call(e,h,y.handle)||w.removeEvent(e,d,y.handle),delete u[d])}else for(d in u)w.event.remove(e,d+t[l],n,r,!0);w.isEmptyObject(u)&&J.remove(e,"handle events")}},dispatch:function(e){var t=w.event.fix(e),n,r,i,o,a,s,u=new Array(arguments.length),l=(J.get(this,"events")||{})[t.type]||[],c=w.event.special[t.type]||{};for(u[0]=t,n=1;n<arguments.length;n++)u[n]=arguments[n];if(t.delegateTarget=this,!c.preDispatch||!1!==c.preDispatch.call(this,t)){s=w.event.handlers.call(this,t,l),n=0;while((o=s[n++])&&!t.isPropagationStopped()){t.currentTarget=o.elem,r=0;while((a=o.handlers[r++])&&!t.isImmediatePropagationStopped())t.rnamespace&&!t.rnamespace.test(a.namespace)||(t.handleObj=a,t.data=a.data,void 0!==(i=((w.event.special[a.origType]||{}).handle||a.handler).apply(o.elem,u))&&!1===(t.result=i)&&(t.preventDefault(),t.stopPropagation()))}return c.postDispatch&&c.postDispatch.call(this,t),t.result}},handlers:function(e,t){var n,r,i,o,a,s=[],u=t.delegateCount,l=e.target;if(u&&l.nodeType&&!("click"===e.type&&e.button>=1))for(;l!==this;l=l.parentNode||this)if(1===l.nodeType&&("click"!==e.type||!0!==l.disabled)){for(o=[],a={},n=0;n<u;n++)void 0===a[i=(r=t[n]).selector+" "]&&(a[i]=r.needsContext?w(i,this).index(l)>-1:w.find(i,this,null,[l]).length),a[i]&&o.push(r);o.length&&s.push({elem:l,handlers:o})}return l=this,u<t.length&&s.push({elem:l,handlers:t.slice(u)}),s},addProp:function(e,t){Object.defineProperty(w.Event.prototype,e,{enumerable:!0,configurable:!0,get:g(t)?function(){if(this.originalEvent)return t(this.originalEvent)}:function(){if(this.originalEvent)return this.originalEvent[e]},set:function(t){Object.defineProperty(this,e,{enumerable:!0,configurable:!0,writable:!0,value:t})}})},fix:function(e){return e[w.expando]?e:new w.Event(e)},special:{load:{noBubble:!0},focus:{trigger:function(){if(this!==Se()&&this.focus)return this.focus(),!1},delegateType:"focusin"},blur:{trigger:function(){if(this===Se()&&this.blur)return this.blur(),!1},delegateType:"focusout"},click:{trigger:function(){if("checkbox"===this.type&&this.click&&N(this,"input"))return this.click(),!1},_default:function(e){return N(e.target,"a")}},beforeunload:{postDispatch:function(e){void 0!==e.result&&e.originalEvent&&(e.originalEvent.returnValue=e.result)}}}},w.removeEvent=function(e,t,n){e.removeEventListener&&e.removeEventListener(t,n)},w.Event=function(e,t){if(!(this instanceof w.Event))return new w.Event(e,t);e&&e.type?(this.originalEvent=e,this.type=e.type,this.isDefaultPrevented=e.defaultPrevented||void 0===e.defaultPrevented&&!1===e.returnValue?Ee:ke,this.target=e.target&&3===e.target.nodeType?e.target.parentNode:e.target,this.currentTarget=e.currentTarget,this.relatedTarget=e.relatedTarget):this.type=e,t&&w.extend(this,t),this.timeStamp=e&&e.timeStamp||Date.now(),this[w.expando]=!0},w.Event.prototype={constructor:w.Event,isDefaultPrevented:ke,isPropagationStopped:ke,isImmediatePropagationStopped:ke,isSimulated:!1,preventDefault:function(){var e=this.originalEvent;this.isDefaultPrevented=Ee,e&&!this.isSimulated&&e.preventDefault()},stopPropagation:function(){var e=this.originalEvent;this.isPropagationStopped=Ee,e&&!this.isSimulated&&e.stopPropagation()},stopImmediatePropagation:function(){var e=this.originalEvent;this.isImmediatePropagationStopped=Ee,e&&!this.isSimulated&&e.stopImmediatePropagation(),this.stopPropagation()}},w.each({altKey:!0,bubbles:!0,cancelable:!0,changedTouches:!0,ctrlKey:!0,detail:!0,eventPhase:!0,metaKey:!0,pageX:!0,pageY:!0,shiftKey:!0,view:!0,"char":!0,charCode:!0,key:!0,keyCode:!0,button:!0,buttons:!0,clientX:!0,clientY:!0,offsetX:!0,offsetY:!0,pointerId:!0,pointerType:!0,screenX:!0,screenY:!0,targetTouches:!0,toElement:!0,touches:!0,which:function(e){var t=e.button;return null==e.which&&we.test(e.type)?null!=e.charCode?e.charCode:e.keyCode:!e.which&&void 0!==t&&Te.test(e.type)?1&t?1:2&t?3:4&t?2:0:e.which}},w.event.addProp),w.each({mouseenter:"mouseover",mouseleave:"mouseout",pointerenter:"pointerover",pointerleave:"pointerout"},function(e,t){w.event.special[e]={delegateType:t,bindType:t,handle:function(e){var n,r=this,i=e.relatedTarget,o=e.handleObj;return i&&(i===r||w.contains(r,i))||(e.type=o.origType,n=o.handler.apply(this,arguments),e.type=t),n}}}),w.fn.extend({on:function(e,t,n,r){return De(this,e,t,n,r)},one:function(e,t,n,r){return De(this,e,t,n,r,1)},off:function(e,t,n){var r,i;if(e&&e.preventDefault&&e.handleObj)return r=e.handleObj,w(e.delegateTarget).off(r.namespace?r.origType+"."+r.namespace:r.origType,r.selector,r.handler),this;if("object"==typeof e){for(i in e)this.off(i,t,e[i]);return this}return!1!==t&&"function"!=typeof t||(n=t,t=void 0),!1===n&&(n=ke),this.each(function(){w.event.remove(this,e,n,t)})}});var Ne=/<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\/\0>\x20\t\r\n\f]*)[^>]*)\/>/gi,Ae=/<script|<style|<link/i,je=/checked\s*(?:[^=]|=\s*.checked.)/i,qe=/^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g;function Le(e,t){return N(e,"table")&&N(11!==t.nodeType?t:t.firstChild,"tr")?w(e).children("tbody")[0]||e:e}function He(e){return e.type=(null!==e.getAttribute("type"))+"/"+e.type,e}function Oe(e){return"true/"===(e.type||"").slice(0,5)?e.type=e.type.slice(5):e.removeAttribute("type"),e}function Pe(e,t){var n,r,i,o,a,s,u,l;if(1===t.nodeType){if(J.hasData(e)&&(o=J.access(e),a=J.set(t,o),l=o.events)){delete a.handle,a.events={};for(i in l)for(n=0,r=l[i].length;n<r;n++)w.event.add(t,i,l[i][n])}K.hasData(e)&&(s=K.access(e),u=w.extend({},s),K.set(t,u))}}function Me(e,t){var n=t.nodeName.toLowerCase();"input"===n&&pe.test(e.type)?t.checked=e.checked:"input"!==n&&"textarea"!==n||(t.defaultValue=e.defaultValue)}function Re(e,t,n,r){t=a.apply([],t);var i,o,s,u,l,c,f=0,p=e.length,d=p-1,y=t[0],v=g(y);if(v||p>1&&"string"==typeof y&&!h.checkClone&&je.test(y))return e.each(function(i){var o=e.eq(i);v&&(t[0]=y.call(this,i,o.html())),Re(o,t,n,r)});if(p&&(i=xe(t,e[0].ownerDocument,!1,e,r),o=i.firstChild,1===i.childNodes.length&&(i=o),o||r)){for(u=(s=w.map(ye(i,"script"),He)).length;f<p;f++)l=i,f!==d&&(l=w.clone(l,!0,!0),u&&w.merge(s,ye(l,"script"))),n.call(e[f],l,f);if(u)for(c=s[s.length-1].ownerDocument,w.map(s,Oe),f=0;f<u;f++)l=s[f],he.test(l.type||"")&&!J.access(l,"globalEval")&&w.contains(c,l)&&(l.src&&"module"!==(l.type||"").toLowerCase()?w._evalUrl&&w._evalUrl(l.src):m(l.textContent.replace(qe,""),c,l))}return e}function Ie(e,t,n){for(var r,i=t?w.filter(t,e):e,o=0;null!=(r=i[o]);o++)n||1!==r.nodeType||w.cleanData(ye(r)),r.parentNode&&(n&&w.contains(r.ownerDocument,r)&&ve(ye(r,"script")),r.parentNode.removeChild(r));return e}w.extend({htmlPrefilter:function(e){return e.replace(Ne,"<$1></$2>")},clone:function(e,t,n){var r,i,o,a,s=e.cloneNode(!0),u=w.contains(e.ownerDocument,e);if(!(h.noCloneChecked||1!==e.nodeType&&11!==e.nodeType||w.isXMLDoc(e)))for(a=ye(s),r=0,i=(o=ye(e)).length;r<i;r++)Me(o[r],a[r]);if(t)if(n)for(o=o||ye(e),a=a||ye(s),r=0,i=o.length;r<i;r++)Pe(o[r],a[r]);else Pe(e,s);return(a=ye(s,"script")).length>0&&ve(a,!u&&ye(e,"script")),s},cleanData:function(e){for(var t,n,r,i=w.event.special,o=0;void 0!==(n=e[o]);o++)if(Y(n)){if(t=n[J.expando]){if(t.events)for(r in t.events)i[r]?w.event.remove(n,r):w.removeEvent(n,r,t.handle);n[J.expando]=void 0}n[K.expando]&&(n[K.expando]=void 0)}}}),w.fn.extend({detach:function(e){return Ie(this,e,!0)},remove:function(e){return Ie(this,e)},text:function(e){return z(this,function(e){return void 0===e?w.text(this):this.empty().each(function(){1!==this.nodeType&&11!==this.nodeType&&9!==this.nodeType||(this.textContent=e)})},null,e,arguments.length)},append:function(){return Re(this,arguments,function(e){1!==this.nodeType&&11!==this.nodeType&&9!==this.nodeType||Le(this,e).appendChild(e)})},prepend:function(){return Re(this,arguments,function(e){if(1===this.nodeType||11===this.nodeType||9===this.nodeType){var t=Le(this,e);t.insertBefore(e,t.firstChild)}})},before:function(){return Re(this,arguments,function(e){this.parentNode&&this.parentNode.insertBefore(e,this)})},after:function(){return Re(this,arguments,function(e){this.parentNode&&this.parentNode.insertBefore(e,this.nextSibling)})},empty:function(){for(var e,t=0;null!=(e=this[t]);t++)1===e.nodeType&&(w.cleanData(ye(e,!1)),e.textContent="");return this},clone:function(e,t){return e=null!=e&&e,t=null==t?e:t,this.map(function(){return w.clone(this,e,t)})},html:function(e){return z(this,function(e){var t=this[0]||{},n=0,r=this.length;if(void 0===e&&1===t.nodeType)return t.innerHTML;if("string"==typeof e&&!Ae.test(e)&&!ge[(de.exec(e)||["",""])[1].toLowerCase()]){e=w.htmlPrefilter(e);try{for(;n<r;n++)1===(t=this[n]||{}).nodeType&&(w.cleanData(ye(t,!1)),t.innerHTML=e);t=0}catch(e){}}t&&this.empty().append(e)},null,e,arguments.length)},replaceWith:function(){var e=[];return Re(this,arguments,function(t){var n=this.parentNode;w.inArray(this,e)<0&&(w.cleanData(ye(this)),n&&n.replaceChild(t,this))},e)}}),w.each({appendTo:"append",prependTo:"prepend",insertBefore:"before",insertAfter:"after",replaceAll:"replaceWith"},function(e,t){w.fn[e]=function(e){for(var n,r=[],i=w(e),o=i.length-1,a=0;a<=o;a++)n=a===o?this:this.clone(!0),w(i[a])[t](n),s.apply(r,n.get());return this.pushStack(r)}});var We=new RegExp("^("+re+")(?!px)[a-z%]+$","i"),$e=function(t){var n=t.ownerDocument.defaultView;return n&&n.opener||(n=e),n.getComputedStyle(t)},Be=new RegExp(oe.join("|"),"i");!function(){function t(){if(c){l.style.cssText="position:absolute;left:-11111px;width:60px;margin-top:1px;padding:0;border:0",c.style.cssText="position:relative;display:block;box-sizing:border-box;overflow:scroll;margin:auto;border:1px;padding:1px;width:60%;top:1%",be.appendChild(l).appendChild(c);var t=e.getComputedStyle(c);i="1%"!==t.top,u=12===n(t.marginLeft),c.style.right="60%",s=36===n(t.right),o=36===n(t.width),c.style.position="absolute",a=36===c.offsetWidth||"absolute",be.removeChild(l),c=null}}function n(e){return Math.round(parseFloat(e))}var i,o,a,s,u,l=r.createElement("div"),c=r.createElement("div");c.style&&(c.style.backgroundClip="content-box",c.cloneNode(!0).style.backgroundClip="",h.clearCloneStyle="content-box"===c.style.backgroundClip,w.extend(h,{boxSizingReliable:function(){return t(),o},pixelBoxStyles:function(){return t(),s},pixelPosition:function(){return t(),i},reliableMarginLeft:function(){return t(),u},scrollboxSize:function(){return t(),a}}))}();function Fe(e,t,n){var r,i,o,a,s=e.style;return(n=n||$e(e))&&(""!==(a=n.getPropertyValue(t)||n[t])||w.contains(e.ownerDocument,e)||(a=w.style(e,t)),!h.pixelBoxStyles()&&We.test(a)&&Be.test(t)&&(r=s.width,i=s.minWidth,o=s.maxWidth,s.minWidth=s.maxWidth=s.width=a,a=n.width,s.width=r,s.minWidth=i,s.maxWidth=o)),void 0!==a?a+"":a}function _e(e,t){return{get:function(){if(!e())return(this.get=t).apply(this,arguments);delete this.get}}}var ze=/^(none|table(?!-c[ea]).+)/,Xe=/^--/,Ue={position:"absolute",visibility:"hidden",display:"block"},Ve={letterSpacing:"0",fontWeight:"400"},Ge=["Webkit","Moz","ms"],Ye=r.createElement("div").style;function Qe(e){if(e in Ye)return e;var t=e[0].toUpperCase()+e.slice(1),n=Ge.length;while(n--)if((e=Ge[n]+t)in Ye)return e}function Je(e){var t=w.cssProps[e];return t||(t=w.cssProps[e]=Qe(e)||e),t}function Ke(e,t,n){var r=ie.exec(t);return r?Math.max(0,r[2]-(n||0))+(r[3]||"px"):t}function Ze(e,t,n,r,i,o){var a="width"===t?1:0,s=0,u=0;if(n===(r?"border":"content"))return 0;for(;a<4;a+=2)"margin"===n&&(u+=w.css(e,n+oe[a],!0,i)),r?("content"===n&&(u-=w.css(e,"padding"+oe[a],!0,i)),"margin"!==n&&(u-=w.css(e,"border"+oe[a]+"Width",!0,i))):(u+=w.css(e,"padding"+oe[a],!0,i),"padding"!==n?u+=w.css(e,"border"+oe[a]+"Width",!0,i):s+=w.css(e,"border"+oe[a]+"Width",!0,i));return!r&&o>=0&&(u+=Math.max(0,Math.ceil(e["offset"+t[0].toUpperCase()+t.slice(1)]-o-u-s-.5))),u}function et(e,t,n){var r=$e(e),i=Fe(e,t,r),o="border-box"===w.css(e,"boxSizing",!1,r),a=o;if(We.test(i)){if(!n)return i;i="auto"}return a=a&&(h.boxSizingReliable()||i===e.style[t]),("auto"===i||!parseFloat(i)&&"inline"===w.css(e,"display",!1,r))&&(i=e["offset"+t[0].toUpperCase()+t.slice(1)],a=!0),(i=parseFloat(i)||0)+Ze(e,t,n||(o?"border":"content"),a,r,i)+"px"}w.extend({cssHooks:{opacity:{get:function(e,t){if(t){var n=Fe(e,"opacity");return""===n?"1":n}}}},cssNumber:{animationIterationCount:!0,columnCount:!0,fillOpacity:!0,flexGrow:!0,flexShrink:!0,fontWeight:!0,lineHeight:!0,opacity:!0,order:!0,orphans:!0,widows:!0,zIndex:!0,zoom:!0},cssProps:{},style:function(e,t,n,r){if(e&&3!==e.nodeType&&8!==e.nodeType&&e.style){var i,o,a,s=G(t),u=Xe.test(t),l=e.style;if(u||(t=Je(s)),a=w.cssHooks[t]||w.cssHooks[s],void 0===n)return a&&"get"in a&&void 0!==(i=a.get(e,!1,r))?i:l[t];"string"==(o=typeof n)&&(i=ie.exec(n))&&i[1]&&(n=ue(e,t,i),o="number"),null!=n&&n===n&&("number"===o&&(n+=i&&i[3]||(w.cssNumber[s]?"":"px")),h.clearCloneStyle||""!==n||0!==t.indexOf("background")||(l[t]="inherit"),a&&"set"in a&&void 0===(n=a.set(e,n,r))||(u?l.setProperty(t,n):l[t]=n))}},css:function(e,t,n,r){var i,o,a,s=G(t);return Xe.test(t)||(t=Je(s)),(a=w.cssHooks[t]||w.cssHooks[s])&&"get"in a&&(i=a.get(e,!0,n)),void 0===i&&(i=Fe(e,t,r)),"normal"===i&&t in Ve&&(i=Ve[t]),""===n||n?(o=parseFloat(i),!0===n||isFinite(o)?o||0:i):i}}),w.each(["height","width"],function(e,t){w.cssHooks[t]={get:function(e,n,r){if(n)return!ze.test(w.css(e,"display"))||e.getClientRects().length&&e.getBoundingClientRect().width?et(e,t,r):se(e,Ue,function(){return et(e,t,r)})},set:function(e,n,r){var i,o=$e(e),a="border-box"===w.css(e,"boxSizing",!1,o),s=r&&Ze(e,t,r,a,o);return a&&h.scrollboxSize()===o.position&&(s-=Math.ceil(e["offset"+t[0].toUpperCase()+t.slice(1)]-parseFloat(o[t])-Ze(e,t,"border",!1,o)-.5)),s&&(i=ie.exec(n))&&"px"!==(i[3]||"px")&&(e.style[t]=n,n=w.css(e,t)),Ke(e,n,s)}}}),w.cssHooks.marginLeft=_e(h.reliableMarginLeft,function(e,t){if(t)return(parseFloat(Fe(e,"marginLeft"))||e.getBoundingClientRect().left-se(e,{marginLeft:0},function(){return e.getBoundingClientRect().left}))+"px"}),w.each({margin:"",padding:"",border:"Width"},function(e,t){w.cssHooks[e+t]={expand:function(n){for(var r=0,i={},o="string"==typeof n?n.split(" "):[n];r<4;r++)i[e+oe[r]+t]=o[r]||o[r-2]||o[0];return i}},"margin"!==e&&(w.cssHooks[e+t].set=Ke)}),w.fn.extend({css:function(e,t){return z(this,function(e,t,n){var r,i,o={},a=0;if(Array.isArray(t)){for(r=$e(e),i=t.length;a<i;a++)o[t[a]]=w.css(e,t[a],!1,r);return o}return void 0!==n?w.style(e,t,n):w.css(e,t)},e,t,arguments.length>1)}});function tt(e,t,n,r,i){return new tt.prototype.init(e,t,n,r,i)}w.Tween=tt,tt.prototype={constructor:tt,init:function(e,t,n,r,i,o){this.elem=e,this.prop=n,this.easing=i||w.easing._default,this.options=t,this.start=this.now=this.cur(),this.end=r,this.unit=o||(w.cssNumber[n]?"":"px")},cur:function(){var e=tt.propHooks[this.prop];return e&&e.get?e.get(this):tt.propHooks._default.get(this)},run:function(e){var t,n=tt.propHooks[this.prop];return this.options.duration?this.pos=t=w.easing[this.easing](e,this.options.duration*e,0,1,this.options.duration):this.pos=t=e,this.now=(this.end-this.start)*t+this.start,this.options.step&&this.options.step.call(this.elem,this.now,this),n&&n.set?n.set(this):tt.propHooks._default.set(this),this}},tt.prototype.init.prototype=tt.prototype,tt.propHooks={_default:{get:function(e){var t;return 1!==e.elem.nodeType||null!=e.elem[e.prop]&&null==e.elem.style[e.prop]?e.elem[e.prop]:(t=w.css(e.elem,e.prop,""))&&"auto"!==t?t:0},set:function(e){w.fx.step[e.prop]?w.fx.step[e.prop](e):1!==e.elem.nodeType||null==e.elem.style[w.cssProps[e.prop]]&&!w.cssHooks[e.prop]?e.elem[e.prop]=e.now:w.style(e.elem,e.prop,e.now+e.unit)}}},tt.propHooks.scrollTop=tt.propHooks.scrollLeft={set:function(e){e.elem.nodeType&&e.elem.parentNode&&(e.elem[e.prop]=e.now)}},w.easing={linear:function(e){return e},swing:function(e){return.5-Math.cos(e*Math.PI)/2},_default:"swing"},w.fx=tt.prototype.init,w.fx.step={};var nt,rt,it=/^(?:toggle|show|hide)$/,ot=/queueHooks$/;function at(){rt&&(!1===r.hidden&&e.requestAnimationFrame?e.requestAnimationFrame(at):e.setTimeout(at,w.fx.interval),w.fx.tick())}function st(){return e.setTimeout(function(){nt=void 0}),nt=Date.now()}function ut(e,t){var n,r=0,i={height:e};for(t=t?1:0;r<4;r+=2-t)i["margin"+(n=oe[r])]=i["padding"+n]=e;return t&&(i.opacity=i.width=e),i}function lt(e,t,n){for(var r,i=(pt.tweeners[t]||[]).concat(pt.tweeners["*"]),o=0,a=i.length;o<a;o++)if(r=i[o].call(n,t,e))return r}function ct(e,t,n){var r,i,o,a,s,u,l,c,f="width"in t||"height"in t,p=this,d={},h=e.style,g=e.nodeType&&ae(e),y=J.get(e,"fxshow");n.queue||(null==(a=w._queueHooks(e,"fx")).unqueued&&(a.unqueued=0,s=a.empty.fire,a.empty.fire=function(){a.unqueued||s()}),a.unqueued++,p.always(function(){p.always(function(){a.unqueued--,w.queue(e,"fx").length||a.empty.fire()})}));for(r in t)if(i=t[r],it.test(i)){if(delete t[r],o=o||"toggle"===i,i===(g?"hide":"show")){if("show"!==i||!y||void 0===y[r])continue;g=!0}d[r]=y&&y[r]||w.style(e,r)}if((u=!w.isEmptyObject(t))||!w.isEmptyObject(d)){f&&1===e.nodeType&&(n.overflow=[h.overflow,h.overflowX,h.overflowY],null==(l=y&&y.display)&&(l=J.get(e,"display")),"none"===(c=w.css(e,"display"))&&(l?c=l:(fe([e],!0),l=e.style.display||l,c=w.css(e,"display"),fe([e]))),("inline"===c||"inline-block"===c&&null!=l)&&"none"===w.css(e,"float")&&(u||(p.done(function(){h.display=l}),null==l&&(c=h.display,l="none"===c?"":c)),h.display="inline-block")),n.overflow&&(h.overflow="hidden",p.always(function(){h.overflow=n.overflow[0],h.overflowX=n.overflow[1],h.overflowY=n.overflow[2]})),u=!1;for(r in d)u||(y?"hidden"in y&&(g=y.hidden):y=J.access(e,"fxshow",{display:l}),o&&(y.hidden=!g),g&&fe([e],!0),p.done(function(){g||fe([e]),J.remove(e,"fxshow");for(r in d)w.style(e,r,d[r])})),u=lt(g?y[r]:0,r,p),r in y||(y[r]=u.start,g&&(u.end=u.start,u.start=0))}}function ft(e,t){var n,r,i,o,a;for(n in e)if(r=G(n),i=t[r],o=e[n],Array.isArray(o)&&(i=o[1],o=e[n]=o[0]),n!==r&&(e[r]=o,delete e[n]),(a=w.cssHooks[r])&&"expand"in a){o=a.expand(o),delete e[r];for(n in o)n in e||(e[n]=o[n],t[n]=i)}else t[r]=i}function pt(e,t,n){var r,i,o=0,a=pt.prefilters.length,s=w.Deferred().always(function(){delete u.elem}),u=function(){if(i)return!1;for(var t=nt||st(),n=Math.max(0,l.startTime+l.duration-t),r=1-(n/l.duration||0),o=0,a=l.tweens.length;o<a;o++)l.tweens[o].run(r);return s.notifyWith(e,[l,r,n]),r<1&&a?n:(a||s.notifyWith(e,[l,1,0]),s.resolveWith(e,[l]),!1)},l=s.promise({elem:e,props:w.extend({},t),opts:w.extend(!0,{specialEasing:{},easing:w.easing._default},n),originalProperties:t,originalOptions:n,startTime:nt||st(),duration:n.duration,tweens:[],createTween:function(t,n){var r=w.Tween(e,l.opts,t,n,l.opts.specialEasing[t]||l.opts.easing);return l.tweens.push(r),r},stop:function(t){var n=0,r=t?l.tweens.length:0;if(i)return this;for(i=!0;n<r;n++)l.tweens[n].run(1);return t?(s.notifyWith(e,[l,1,0]),s.resolveWith(e,[l,t])):s.rejectWith(e,[l,t]),this}}),c=l.props;for(ft(c,l.opts.specialEasing);o<a;o++)if(r=pt.prefilters[o].call(l,e,c,l.opts))return g(r.stop)&&(w._queueHooks(l.elem,l.opts.queue).stop=r.stop.bind(r)),r;return w.map(c,lt,l),g(l.opts.start)&&l.opts.start.call(e,l),l.progress(l.opts.progress).done(l.opts.done,l.opts.complete).fail(l.opts.fail).always(l.opts.always),w.fx.timer(w.extend(u,{elem:e,anim:l,queue:l.opts.queue})),l}w.Animation=w.extend(pt,{tweeners:{"*":[function(e,t){var n=this.createTween(e,t);return ue(n.elem,e,ie.exec(t),n),n}]},tweener:function(e,t){g(e)?(t=e,e=["*"]):e=e.match(M);for(var n,r=0,i=e.length;r<i;r++)n=e[r],pt.tweeners[n]=pt.tweeners[n]||[],pt.tweeners[n].unshift(t)},prefilters:[ct],prefilter:function(e,t){t?pt.prefilters.unshift(e):pt.prefilters.push(e)}}),w.speed=function(e,t,n){var r=e&&"object"==typeof e?w.extend({},e):{complete:n||!n&&t||g(e)&&e,duration:e,easing:n&&t||t&&!g(t)&&t};return w.fx.off?r.duration=0:"number"!=typeof r.duration&&(r.duration in w.fx.speeds?r.duration=w.fx.speeds[r.duration]:r.duration=w.fx.speeds._default),null!=r.queue&&!0!==r.queue||(r.queue="fx"),r.old=r.complete,r.complete=function(){g(r.old)&&r.old.call(this),r.queue&&w.dequeue(this,r.queue)},r},w.fn.extend({fadeTo:function(e,t,n,r){return this.filter(ae).css("opacity",0).show().end().animate({opacity:t},e,n,r)},animate:function(e,t,n,r){var i=w.isEmptyObject(e),o=w.speed(t,n,r),a=function(){var t=pt(this,w.extend({},e),o);(i||J.get(this,"finish"))&&t.stop(!0)};return a.finish=a,i||!1===o.queue?this.each(a):this.queue(o.queue,a)},stop:function(e,t,n){var r=function(e){var t=e.stop;delete e.stop,t(n)};return"string"!=typeof e&&(n=t,t=e,e=void 0),t&&!1!==e&&this.queue(e||"fx",[]),this.each(function(){var t=!0,i=null!=e&&e+"queueHooks",o=w.timers,a=J.get(this);if(i)a[i]&&a[i].stop&&r(a[i]);else for(i in a)a[i]&&a[i].stop&&ot.test(i)&&r(a[i]);for(i=o.length;i--;)o[i].elem!==this||null!=e&&o[i].queue!==e||(o[i].anim.stop(n),t=!1,o.splice(i,1));!t&&n||w.dequeue(this,e)})},finish:function(e){return!1!==e&&(e=e||"fx"),this.each(function(){var t,n=J.get(this),r=n[e+"queue"],i=n[e+"queueHooks"],o=w.timers,a=r?r.length:0;for(n.finish=!0,w.queue(this,e,[]),i&&i.stop&&i.stop.call(this,!0),t=o.length;t--;)o[t].elem===this&&o[t].queue===e&&(o[t].anim.stop(!0),o.splice(t,1));for(t=0;t<a;t++)r[t]&&r[t].finish&&r[t].finish.call(this);delete n.finish})}}),w.each(["toggle","show","hide"],function(e,t){var n=w.fn[t];w.fn[t]=function(e,r,i){return null==e||"boolean"==typeof e?n.apply(this,arguments):this.animate(ut(t,!0),e,r,i)}}),w.each({slideDown:ut("show"),slideUp:ut("hide"),slideToggle:ut("toggle"),fadeIn:{opacity:"show"},fadeOut:{opacity:"hide"},fadeToggle:{opacity:"toggle"}},function(e,t){w.fn[e]=function(e,n,r){return this.animate(t,e,n,r)}}),w.timers=[],w.fx.tick=function(){var e,t=0,n=w.timers;for(nt=Date.now();t<n.length;t++)(e=n[t])()||n[t]!==e||n.splice(t--,1);n.length||w.fx.stop(),nt=void 0},w.fx.timer=function(e){w.timers.push(e),w.fx.start()},w.fx.interval=13,w.fx.start=function(){rt||(rt=!0,at())},w.fx.stop=function(){rt=null},w.fx.speeds={slow:600,fast:200,_default:400},w.fn.delay=function(t,n){return t=w.fx?w.fx.speeds[t]||t:t,n=n||"fx",this.queue(n,function(n,r){var i=e.setTimeout(n,t);r.stop=function(){e.clearTimeout(i)}})},function(){var e=r.createElement("input"),t=r.createElement("select").appendChild(r.createElement("option"));e.type="checkbox",h.checkOn=""!==e.value,h.optSelected=t.selected,(e=r.createElement("input")).value="t",e.type="radio",h.radioValue="t"===e.value}();var dt,ht=w.expr.attrHandle;w.fn.extend({attr:function(e,t){return z(this,w.attr,e,t,arguments.length>1)},removeAttr:function(e){return this.each(function(){w.removeAttr(this,e)})}}),w.extend({attr:function(e,t,n){var r,i,o=e.nodeType;if(3!==o&&8!==o&&2!==o)return"undefined"==typeof e.getAttribute?w.prop(e,t,n):(1===o&&w.isXMLDoc(e)||(i=w.attrHooks[t.toLowerCase()]||(w.expr.match.bool.test(t)?dt:void 0)),void 0!==n?null===n?void w.removeAttr(e,t):i&&"set"in i&&void 0!==(r=i.set(e,n,t))?r:(e.setAttribute(t,n+""),n):i&&"get"in i&&null!==(r=i.get(e,t))?r:null==(r=w.find.attr(e,t))?void 0:r)},attrHooks:{type:{set:function(e,t){if(!h.radioValue&&"radio"===t&&N(e,"input")){var n=e.value;return e.setAttribute("type",t),n&&(e.value=n),t}}}},removeAttr:function(e,t){var n,r=0,i=t&&t.match(M);if(i&&1===e.nodeType)while(n=i[r++])e.removeAttribute(n)}}),dt={set:function(e,t,n){return!1===t?w.removeAttr(e,n):e.setAttribute(n,n),n}},w.each(w.expr.match.bool.source.match(/\w+/g),function(e,t){var n=ht[t]||w.find.attr;ht[t]=function(e,t,r){var i,o,a=t.toLowerCase();return r||(o=ht[a],ht[a]=i,i=null!=n(e,t,r)?a:null,ht[a]=o),i}});var gt=/^(?:input|select|textarea|button)$/i,yt=/^(?:a|area)$/i;w.fn.extend({prop:function(e,t){return z(this,w.prop,e,t,arguments.length>1)},removeProp:function(e){return this.each(function(){delete this[w.propFix[e]||e]})}}),w.extend({prop:function(e,t,n){var r,i,o=e.nodeType;if(3!==o&&8!==o&&2!==o)return 1===o&&w.isXMLDoc(e)||(t=w.propFix[t]||t,i=w.propHooks[t]),void 0!==n?i&&"set"in i&&void 0!==(r=i.set(e,n,t))?r:e[t]=n:i&&"get"in i&&null!==(r=i.get(e,t))?r:e[t]},propHooks:{tabIndex:{get:function(e){var t=w.find.attr(e,"tabindex");return t?parseInt(t,10):gt.test(e.nodeName)||yt.test(e.nodeName)&&e.href?0:-1}}},propFix:{"for":"htmlFor","class":"className"}}),h.optSelected||(w.propHooks.selected={get:function(e){var t=e.parentNode;return t&&t.parentNode&&t.parentNode.selectedIndex,null},set:function(e){var t=e.parentNode;t&&(t.selectedIndex,t.parentNode&&t.parentNode.selectedIndex)}}),w.each(["tabIndex","readOnly","maxLength","cellSpacing","cellPadding","rowSpan","colSpan","useMap","frameBorder","contentEditable"],function(){w.propFix[this.toLowerCase()]=this});function vt(e){return(e.match(M)||[]).join(" ")}function mt(e){return e.getAttribute&&e.getAttribute("class")||""}function xt(e){return Array.isArray(e)?e:"string"==typeof e?e.match(M)||[]:[]}w.fn.extend({addClass:function(e){var t,n,r,i,o,a,s,u=0;if(g(e))return this.each(function(t){w(this).addClass(e.call(this,t,mt(this)))});if((t=xt(e)).length)while(n=this[u++])if(i=mt(n),r=1===n.nodeType&&" "+vt(i)+" "){a=0;while(o=t[a++])r.indexOf(" "+o+" ")<0&&(r+=o+" ");i!==(s=vt(r))&&n.setAttribute("class",s)}return this},removeClass:function(e){var t,n,r,i,o,a,s,u=0;if(g(e))return this.each(function(t){w(this).removeClass(e.call(this,t,mt(this)))});if(!arguments.length)return this.attr("class","");if((t=xt(e)).length)while(n=this[u++])if(i=mt(n),r=1===n.nodeType&&" "+vt(i)+" "){a=0;while(o=t[a++])while(r.indexOf(" "+o+" ")>-1)r=r.replace(" "+o+" "," ");i!==(s=vt(r))&&n.setAttribute("class",s)}return this},toggleClass:function(e,t){var n=typeof e,r="string"===n||Array.isArray(e);return"boolean"==typeof t&&r?t?this.addClass(e):this.removeClass(e):g(e)?this.each(function(n){w(this).toggleClass(e.call(this,n,mt(this),t),t)}):this.each(function(){var t,i,o,a;if(r){i=0,o=w(this),a=xt(e);while(t=a[i++])o.hasClass(t)?o.removeClass(t):o.addClass(t)}else void 0!==e&&"boolean"!==n||((t=mt(this))&&J.set(this,"__className__",t),this.setAttribute&&this.setAttribute("class",t||!1===e?"":J.get(this,"__className__")||""))})},hasClass:function(e){var t,n,r=0;t=" "+e+" ";while(n=this[r++])if(1===n.nodeType&&(" "+vt(mt(n))+" ").indexOf(t)>-1)return!0;return!1}});var bt=/\r/g;w.fn.extend({val:function(e){var t,n,r,i=this[0];{if(arguments.length)return r=g(e),this.each(function(n){var i;1===this.nodeType&&(null==(i=r?e.call(this,n,w(this).val()):e)?i="":"number"==typeof i?i+="":Array.isArray(i)&&(i=w.map(i,function(e){return null==e?"":e+""})),(t=w.valHooks[this.type]||w.valHooks[this.nodeName.toLowerCase()])&&"set"in t&&void 0!==t.set(this,i,"value")||(this.value=i))});if(i)return(t=w.valHooks[i.type]||w.valHooks[i.nodeName.toLowerCase()])&&"get"in t&&void 0!==(n=t.get(i,"value"))?n:"string"==typeof(n=i.value)?n.replace(bt,""):null==n?"":n}}}),w.extend({valHooks:{option:{get:function(e){var t=w.find.attr(e,"value");return null!=t?t:vt(w.text(e))}},select:{get:function(e){var t,n,r,i=e.options,o=e.selectedIndex,a="select-one"===e.type,s=a?null:[],u=a?o+1:i.length;for(r=o<0?u:a?o:0;r<u;r++)if(((n=i[r]).selected||r===o)&&!n.disabled&&(!n.parentNode.disabled||!N(n.parentNode,"optgroup"))){if(t=w(n).val(),a)return t;s.push(t)}return s},set:function(e,t){var n,r,i=e.options,o=w.makeArray(t),a=i.length;while(a--)((r=i[a]).selected=w.inArray(w.valHooks.option.get(r),o)>-1)&&(n=!0);return n||(e.selectedIndex=-1),o}}}}),w.each(["radio","checkbox"],function(){w.valHooks[this]={set:function(e,t){if(Array.isArray(t))return e.checked=w.inArray(w(e).val(),t)>-1}},h.checkOn||(w.valHooks[this].get=function(e){return null===e.getAttribute("value")?"on":e.value})}),h.focusin="onfocusin"in e;var wt=/^(?:focusinfocus|focusoutblur)$/,Tt=function(e){e.stopPropagation()};w.extend(w.event,{trigger:function(t,n,i,o){var a,s,u,l,c,p,d,h,v=[i||r],m=f.call(t,"type")?t.type:t,x=f.call(t,"namespace")?t.namespace.split("."):[];if(s=h=u=i=i||r,3!==i.nodeType&&8!==i.nodeType&&!wt.test(m+w.event.triggered)&&(m.indexOf(".")>-1&&(m=(x=m.split(".")).shift(),x.sort()),c=m.indexOf(":")<0&&"on"+m,t=t[w.expando]?t:new w.Event(m,"object"==typeof t&&t),t.isTrigger=o?2:3,t.namespace=x.join("."),t.rnamespace=t.namespace?new RegExp("(^|\\.)"+x.join("\\.(?:.*\\.|)")+"(\\.|$)"):null,t.result=void 0,t.target||(t.target=i),n=null==n?[t]:w.makeArray(n,[t]),d=w.event.special[m]||{},o||!d.trigger||!1!==d.trigger.apply(i,n))){if(!o&&!d.noBubble&&!y(i)){for(l=d.delegateType||m,wt.test(l+m)||(s=s.parentNode);s;s=s.parentNode)v.push(s),u=s;u===(i.ownerDocument||r)&&v.push(u.defaultView||u.parentWindow||e)}a=0;while((s=v[a++])&&!t.isPropagationStopped())h=s,t.type=a>1?l:d.bindType||m,(p=(J.get(s,"events")||{})[t.type]&&J.get(s,"handle"))&&p.apply(s,n),(p=c&&s[c])&&p.apply&&Y(s)&&(t.result=p.apply(s,n),!1===t.result&&t.preventDefault());return t.type=m,o||t.isDefaultPrevented()||d._default&&!1!==d._default.apply(v.pop(),n)||!Y(i)||c&&g(i[m])&&!y(i)&&((u=i[c])&&(i[c]=null),w.event.triggered=m,t.isPropagationStopped()&&h.addEventListener(m,Tt),i[m](),t.isPropagationStopped()&&h.removeEventListener(m,Tt),w.event.triggered=void 0,u&&(i[c]=u)),t.result}},simulate:function(e,t,n){var r=w.extend(new w.Event,n,{type:e,isSimulated:!0});w.event.trigger(r,null,t)}}),w.fn.extend({trigger:function(e,t){return this.each(function(){w.event.trigger(e,t,this)})},triggerHandler:function(e,t){var n=this[0];if(n)return w.event.trigger(e,t,n,!0)}}),h.focusin||w.each({focus:"focusin",blur:"focusout"},function(e,t){var n=function(e){w.event.simulate(t,e.target,w.event.fix(e))};w.event.special[t]={setup:function(){var r=this.ownerDocument||this,i=J.access(r,t);i||r.addEventListener(e,n,!0),J.access(r,t,(i||0)+1)},teardown:function(){var r=this.ownerDocument||this,i=J.access(r,t)-1;i?J.access(r,t,i):(r.removeEventListener(e,n,!0),J.remove(r,t))}}});var Ct=e.location,Et=Date.now(),kt=/\?/;w.parseXML=function(t){var n;if(!t||"string"!=typeof t)return null;try{n=(new e.DOMParser).parseFromString(t,"text/xml")}catch(e){n=void 0}return n&&!n.getElementsByTagName("parsererror").length||w.error("Invalid XML: "+t),n};var St=/\[\]$/,Dt=/\r?\n/g,Nt=/^(?:submit|button|image|reset|file)$/i,At=/^(?:input|select|textarea|keygen)/i;function jt(e,t,n,r){var i;if(Array.isArray(t))w.each(t,function(t,i){n||St.test(e)?r(e,i):jt(e+"["+("object"==typeof i&&null!=i?t:"")+"]",i,n,r)});else if(n||"object"!==x(t))r(e,t);else for(i in t)jt(e+"["+i+"]",t[i],n,r)}w.param=function(e,t){var n,r=[],i=function(e,t){var n=g(t)?t():t;r[r.length]=encodeURIComponent(e)+"="+encodeURIComponent(null==n?"":n)};if(Array.isArray(e)||e.jquery&&!w.isPlainObject(e))w.each(e,function(){i(this.name,this.value)});else for(n in e)jt(n,e[n],t,i);return r.join("&")},w.fn.extend({serialize:function(){return w.param(this.serializeArray())},serializeArray:function(){return this.map(function(){var e=w.prop(this,"elements");return e?w.makeArray(e):this}).filter(function(){var e=this.type;return this.name&&!w(this).is(":disabled")&&At.test(this.nodeName)&&!Nt.test(e)&&(this.checked||!pe.test(e))}).map(function(e,t){var n=w(this).val();return null==n?null:Array.isArray(n)?w.map(n,function(e){return{name:t.name,value:e.replace(Dt,"\r\n")}}):{name:t.name,value:n.replace(Dt,"\r\n")}}).get()}});var qt=/%20/g,Lt=/#.*$/,Ht=/([?&])_=[^&]*/,Ot=/^(.*?):[ \t]*([^\r\n]*)$/gm,Pt=/^(?:about|app|app-storage|.+-extension|file|res|widget):$/,Mt=/^(?:GET|HEAD)$/,Rt=/^\/\//,It={},Wt={},$t="*/".concat("*"),Bt=r.createElement("a");Bt.href=Ct.href;function Ft(e){return function(t,n){"string"!=typeof t&&(n=t,t="*");var r,i=0,o=t.toLowerCase().match(M)||[];if(g(n))while(r=o[i++])"+"===r[0]?(r=r.slice(1)||"*",(e[r]=e[r]||[]).unshift(n)):(e[r]=e[r]||[]).push(n)}}function _t(e,t,n,r){var i={},o=e===Wt;function a(s){var u;return i[s]=!0,w.each(e[s]||[],function(e,s){var l=s(t,n,r);return"string"!=typeof l||o||i[l]?o?!(u=l):void 0:(t.dataTypes.unshift(l),a(l),!1)}),u}return a(t.dataTypes[0])||!i["*"]&&a("*")}function zt(e,t){var n,r,i=w.ajaxSettings.flatOptions||{};for(n in t)void 0!==t[n]&&((i[n]?e:r||(r={}))[n]=t[n]);return r&&w.extend(!0,e,r),e}function Xt(e,t,n){var r,i,o,a,s=e.contents,u=e.dataTypes;while("*"===u[0])u.shift(),void 0===r&&(r=e.mimeType||t.getResponseHeader("Content-Type"));if(r)for(i in s)if(s[i]&&s[i].test(r)){u.unshift(i);break}if(u[0]in n)o=u[0];else{for(i in n){if(!u[0]||e.converters[i+" "+u[0]]){o=i;break}a||(a=i)}o=o||a}if(o)return o!==u[0]&&u.unshift(o),n[o]}function Ut(e,t,n,r){var i,o,a,s,u,l={},c=e.dataTypes.slice();if(c[1])for(a in e.converters)l[a.toLowerCase()]=e.converters[a];o=c.shift();while(o)if(e.responseFields[o]&&(n[e.responseFields[o]]=t),!u&&r&&e.dataFilter&&(t=e.dataFilter(t,e.dataType)),u=o,o=c.shift())if("*"===o)o=u;else if("*"!==u&&u!==o){if(!(a=l[u+" "+o]||l["* "+o]))for(i in l)if((s=i.split(" "))[1]===o&&(a=l[u+" "+s[0]]||l["* "+s[0]])){!0===a?a=l[i]:!0!==l[i]&&(o=s[0],c.unshift(s[1]));break}if(!0!==a)if(a&&e["throws"])t=a(t);else try{t=a(t)}catch(e){return{state:"parsererror",error:a?e:"No conversion from "+u+" to "+o}}}return{state:"success",data:t}}w.extend({active:0,lastModified:{},etag:{},ajaxSettings:{url:Ct.href,type:"GET",isLocal:Pt.test(Ct.protocol),global:!0,processData:!0,async:!0,contentType:"application/x-www-form-urlencoded; charset=UTF-8",accepts:{"*":$t,text:"text/plain",html:"text/html",xml:"application/xml, text/xml",json:"application/json, text/javascript"},contents:{xml:/\bxml\b/,html:/\bhtml/,json:/\bjson\b/},responseFields:{xml:"responseXML",text:"responseText",json:"responseJSON"},converters:{"* text":String,"text html":!0,"text json":JSON.parse,"text xml":w.parseXML},flatOptions:{url:!0,context:!0}},ajaxSetup:function(e,t){return t?zt(zt(e,w.ajaxSettings),t):zt(w.ajaxSettings,e)},ajaxPrefilter:Ft(It),ajaxTransport:Ft(Wt),ajax:function(t,n){"object"==typeof t&&(n=t,t=void 0),n=n||{};var i,o,a,s,u,l,c,f,p,d,h=w.ajaxSetup({},n),g=h.context||h,y=h.context&&(g.nodeType||g.jquery)?w(g):w.event,v=w.Deferred(),m=w.Callbacks("once memory"),x=h.statusCode||{},b={},T={},C="canceled",E={readyState:0,getResponseHeader:function(e){var t;if(c){if(!s){s={};while(t=Ot.exec(a))s[t[1].toLowerCase()]=t[2]}t=s[e.toLowerCase()]}return null==t?null:t},getAllResponseHeaders:function(){return c?a:null},setRequestHeader:function(e,t){return null==c&&(e=T[e.toLowerCase()]=T[e.toLowerCase()]||e,b[e]=t),this},overrideMimeType:function(e){return null==c&&(h.mimeType=e),this},statusCode:function(e){var t;if(e)if(c)E.always(e[E.status]);else for(t in e)x[t]=[x[t],e[t]];return this},abort:function(e){var t=e||C;return i&&i.abort(t),k(0,t),this}};if(v.promise(E),h.url=((t||h.url||Ct.href)+"").replace(Rt,Ct.protocol+"//"),h.type=n.method||n.type||h.method||h.type,h.dataTypes=(h.dataType||"*").toLowerCase().match(M)||[""],null==h.crossDomain){l=r.createElement("a");try{l.href=h.url,l.href=l.href,h.crossDomain=Bt.protocol+"//"+Bt.host!=l.protocol+"//"+l.host}catch(e){h.crossDomain=!0}}if(h.data&&h.processData&&"string"!=typeof h.data&&(h.data=w.param(h.data,h.traditional)),_t(It,h,n,E),c)return E;(f=w.event&&h.global)&&0==w.active++&&w.event.trigger("ajaxStart"),h.type=h.type.toUpperCase(),h.hasContent=!Mt.test(h.type),o=h.url.replace(Lt,""),h.hasContent?h.data&&h.processData&&0===(h.contentType||"").indexOf("application/x-www-form-urlencoded")&&(h.data=h.data.replace(qt,"+")):(d=h.url.slice(o.length),h.data&&(h.processData||"string"==typeof h.data)&&(o+=(kt.test(o)?"&":"?")+h.data,delete h.data),!1===h.cache&&(o=o.replace(Ht,"$1"),d=(kt.test(o)?"&":"?")+"_="+Et+++d),h.url=o+d),h.ifModified&&(w.lastModified[o]&&E.setRequestHeader("If-Modified-Since",w.lastModified[o]),w.etag[o]&&E.setRequestHeader("If-None-Match",w.etag[o])),(h.data&&h.hasContent&&!1!==h.contentType||n.contentType)&&E.setRequestHeader("Content-Type",h.contentType),E.setRequestHeader("Accept",h.dataTypes[0]&&h.accepts[h.dataTypes[0]]?h.accepts[h.dataTypes[0]]+("*"!==h.dataTypes[0]?", "+$t+"; q=0.01":""):h.accepts["*"]);for(p in h.headers)E.setRequestHeader(p,h.headers[p]);if(h.beforeSend&&(!1===h.beforeSend.call(g,E,h)||c))return E.abort();if(C="abort",m.add(h.complete),E.done(h.success),E.fail(h.error),i=_t(Wt,h,n,E)){if(E.readyState=1,f&&y.trigger("ajaxSend",[E,h]),c)return E;h.async&&h.timeout>0&&(u=e.setTimeout(function(){E.abort("timeout")},h.timeout));try{c=!1,i.send(b,k)}catch(e){if(c)throw e;k(-1,e)}}else k(-1,"No Transport");function k(t,n,r,s){var l,p,d,b,T,C=n;c||(c=!0,u&&e.clearTimeout(u),i=void 0,a=s||"",E.readyState=t>0?4:0,l=t>=200&&t<300||304===t,r&&(b=Xt(h,E,r)),b=Ut(h,b,E,l),l?(h.ifModified&&((T=E.getResponseHeader("Last-Modified"))&&(w.lastModified[o]=T),(T=E.getResponseHeader("etag"))&&(w.etag[o]=T)),204===t||"HEAD"===h.type?C="nocontent":304===t?C="notmodified":(C=b.state,p=b.data,l=!(d=b.error))):(d=C,!t&&C||(C="error",t<0&&(t=0))),E.status=t,E.statusText=(n||C)+"",l?v.resolveWith(g,[p,C,E]):v.rejectWith(g,[E,C,d]),E.statusCode(x),x=void 0,f&&y.trigger(l?"ajaxSuccess":"ajaxError",[E,h,l?p:d]),m.fireWith(g,[E,C]),f&&(y.trigger("ajaxComplete",[E,h]),--w.active||w.event.trigger("ajaxStop")))}return E},getJSON:function(e,t,n){return w.get(e,t,n,"json")},getScript:function(e,t){return w.get(e,void 0,t,"script")}}),w.each(["get","post"],function(e,t){w[t]=function(e,n,r,i){return g(n)&&(i=i||r,r=n,n=void 0),w.ajax(w.extend({url:e,type:t,dataType:i,data:n,success:r},w.isPlainObject(e)&&e))}}),w._evalUrl=function(e){return w.ajax({url:e,type:"GET",dataType:"script",cache:!0,async:!1,global:!1,"throws":!0})},w.fn.extend({wrapAll:function(e){var t;return this[0]&&(g(e)&&(e=e.call(this[0])),t=w(e,this[0].ownerDocument).eq(0).clone(!0),this[0].parentNode&&t.insertBefore(this[0]),t.map(function(){var e=this;while(e.firstElementChild)e=e.firstElementChild;return e}).append(this)),this},wrapInner:function(e){return g(e)?this.each(function(t){w(this).wrapInner(e.call(this,t))}):this.each(function(){var t=w(this),n=t.contents();n.length?n.wrapAll(e):t.append(e)})},wrap:function(e){var t=g(e);return this.each(function(n){w(this).wrapAll(t?e.call(this,n):e)})},unwrap:function(e){return this.parent(e).not("body").each(function(){w(this).replaceWith(this.childNodes)}),this}}),w.expr.pseudos.hidden=function(e){return!w.expr.pseudos.visible(e)},w.expr.pseudos.visible=function(e){return!!(e.offsetWidth||e.offsetHeight||e.getClientRects().length)},w.ajaxSettings.xhr=function(){try{return new e.XMLHttpRequest}catch(e){}};var Vt={0:200,1223:204},Gt=w.ajaxSettings.xhr();h.cors=!!Gt&&"withCredentials"in Gt,h.ajax=Gt=!!Gt,w.ajaxTransport(function(t){var n,r;if(h.cors||Gt&&!t.crossDomain)return{send:function(i,o){var a,s=t.xhr();if(s.open(t.type,t.url,t.async,t.username,t.password),t.xhrFields)for(a in t.xhrFields)s[a]=t.xhrFields[a];t.mimeType&&s.overrideMimeType&&s.overrideMimeType(t.mimeType),t.crossDomain||i["X-Requested-With"]||(i["X-Requested-With"]="XMLHttpRequest");for(a in i)s.setRequestHeader(a,i[a]);n=function(e){return function(){n&&(n=r=s.onload=s.onerror=s.onabort=s.ontimeout=s.onreadystatechange=null,"abort"===e?s.abort():"error"===e?"number"!=typeof s.status?o(0,"error"):o(s.status,s.statusText):o(Vt[s.status]||s.status,s.statusText,"text"!==(s.responseType||"text")||"string"!=typeof s.responseText?{binary:s.response}:{text:s.responseText},s.getAllResponseHeaders()))}},s.onload=n(),r=s.onerror=s.ontimeout=n("error"),void 0!==s.onabort?s.onabort=r:s.onreadystatechange=function(){4===s.readyState&&e.setTimeout(function(){n&&r()})},n=n("abort");try{s.send(t.hasContent&&t.data||null)}catch(e){if(n)throw e}},abort:function(){n&&n()}}}),w.ajaxPrefilter(function(e){e.crossDomain&&(e.contents.script=!1)}),w.ajaxSetup({accepts:{script:"text/javascript, application/javascript, application/ecmascript, application/x-ecmascript"},contents:{script:/\b(?:java|ecma)script\b/},converters:{"text script":function(e){return w.globalEval(e),e}}}),w.ajaxPrefilter("script",function(e){void 0===e.cache&&(e.cache=!1),e.crossDomain&&(e.type="GET")}),w.ajaxTransport("script",function(e){if(e.crossDomain){var t,n;return{send:function(i,o){t=w("<script>").prop({charset:e.scriptCharset,src:e.url}).on("load error",n=function(e){t.remove(),n=null,e&&o("error"===e.type?404:200,e.type)}),r.head.appendChild(t[0])},abort:function(){n&&n()}}}});var Yt=[],Qt=/(=)\?(?=&|$)|\?\?/;w.ajaxSetup({jsonp:"callback",jsonpCallback:function(){var e=Yt.pop()||w.expando+"_"+Et++;return this[e]=!0,e}}),w.ajaxPrefilter("json jsonp",function(t,n,r){var i,o,a,s=!1!==t.jsonp&&(Qt.test(t.url)?"url":"string"==typeof t.data&&0===(t.contentType||"").indexOf("application/x-www-form-urlencoded")&&Qt.test(t.data)&&"data");if(s||"jsonp"===t.dataTypes[0])return i=t.jsonpCallback=g(t.jsonpCallback)?t.jsonpCallback():t.jsonpCallback,s?t[s]=t[s].replace(Qt,"$1"+i):!1!==t.jsonp&&(t.url+=(kt.test(t.url)?"&":"?")+t.jsonp+"="+i),t.converters["script json"]=function(){return a||w.error(i+" was not called"),a[0]},t.dataTypes[0]="json",o=e[i],e[i]=function(){a=arguments},r.always(function(){void 0===o?w(e).removeProp(i):e[i]=o,t[i]&&(t.jsonpCallback=n.jsonpCallback,Yt.push(i)),a&&g(o)&&o(a[0]),a=o=void 0}),"script"}),h.createHTMLDocument=function(){var e=r.implementation.createHTMLDocument("").body;return e.innerHTML="<form></form><form></form>",2===e.childNodes.length}(),w.parseHTML=function(e,t,n){if("string"!=typeof e)return[];"boolean"==typeof t&&(n=t,t=!1);var i,o,a;return t||(h.createHTMLDocument?((i=(t=r.implementation.createHTMLDocument("")).createElement("base")).href=r.location.href,t.head.appendChild(i)):t=r),o=A.exec(e),a=!n&&[],o?[t.createElement(o[1])]:(o=xe([e],t,a),a&&a.length&&w(a).remove(),w.merge([],o.childNodes))},w.fn.load=function(e,t,n){var r,i,o,a=this,s=e.indexOf(" ");return s>-1&&(r=vt(e.slice(s)),e=e.slice(0,s)),g(t)?(n=t,t=void 0):t&&"object"==typeof t&&(i="POST"),a.length>0&&w.ajax({url:e,type:i||"GET",dataType:"html",data:t}).done(function(e){o=arguments,a.html(r?w("<div>").append(w.parseHTML(e)).find(r):e)}).always(n&&function(e,t){a.each(function(){n.apply(this,o||[e.responseText,t,e])})}),this},w.each(["ajaxStart","ajaxStop","ajaxComplete","ajaxError","ajaxSuccess","ajaxSend"],function(e,t){w.fn[t]=function(e){return this.on(t,e)}}),w.expr.pseudos.animated=function(e){return w.grep(w.timers,function(t){return e===t.elem}).length},w.offset={setOffset:function(e,t,n){var r,i,o,a,s,u,l,c=w.css(e,"position"),f=w(e),p={};"static"===c&&(e.style.position="relative"),s=f.offset(),o=w.css(e,"top"),u=w.css(e,"left"),(l=("absolute"===c||"fixed"===c)&&(o+u).indexOf("auto")>-1)?(a=(r=f.position()).top,i=r.left):(a=parseFloat(o)||0,i=parseFloat(u)||0),g(t)&&(t=t.call(e,n,w.extend({},s))),null!=t.top&&(p.top=t.top-s.top+a),null!=t.left&&(p.left=t.left-s.left+i),"using"in t?t.using.call(e,p):f.css(p)}},w.fn.extend({offset:function(e){if(arguments.length)return void 0===e?this:this.each(function(t){w.offset.setOffset(this,e,t)});var t,n,r=this[0];if(r)return r.getClientRects().length?(t=r.getBoundingClientRect(),n=r.ownerDocument.defaultView,{top:t.top+n.pageYOffset,left:t.left+n.pageXOffset}):{top:0,left:0}},position:function(){if(this[0]){var e,t,n,r=this[0],i={top:0,left:0};if("fixed"===w.css(r,"position"))t=r.getBoundingClientRect();else{t=this.offset(),n=r.ownerDocument,e=r.offsetParent||n.documentElement;while(e&&(e===n.body||e===n.documentElement)&&"static"===w.css(e,"position"))e=e.parentNode;e&&e!==r&&1===e.nodeType&&((i=w(e).offset()).top+=w.css(e,"borderTopWidth",!0),i.left+=w.css(e,"borderLeftWidth",!0))}return{top:t.top-i.top-w.css(r,"marginTop",!0),left:t.left-i.left-w.css(r,"marginLeft",!0)}}},offsetParent:function(){return this.map(function(){var e=this.offsetParent;while(e&&"static"===w.css(e,"position"))e=e.offsetParent;return e||be})}}),w.each({scrollLeft:"pageXOffset",scrollTop:"pageYOffset"},function(e,t){var n="pageYOffset"===t;w.fn[e]=function(r){return z(this,function(e,r,i){var o;if(y(e)?o=e:9===e.nodeType&&(o=e.defaultView),void 0===i)return o?o[t]:e[r];o?o.scrollTo(n?o.pageXOffset:i,n?i:o.pageYOffset):e[r]=i},e,r,arguments.length)}}),w.each(["top","left"],function(e,t){w.cssHooks[t]=_e(h.pixelPosition,function(e,n){if(n)return n=Fe(e,t),We.test(n)?w(e).position()[t]+"px":n})}),w.each({Height:"height",Width:"width"},function(e,t){w.each({padding:"inner"+e,content:t,"":"outer"+e},function(n,r){w.fn[r]=function(i,o){var a=arguments.length&&(n||"boolean"!=typeof i),s=n||(!0===i||!0===o?"margin":"border");return z(this,function(t,n,i){var o;return y(t)?0===r.indexOf("outer")?t["inner"+e]:t.document.documentElement["client"+e]:9===t.nodeType?(o=t.documentElement,Math.max(t.body["scroll"+e],o["scroll"+e],t.body["offset"+e],o["offset"+e],o["client"+e])):void 0===i?w.css(t,n,s):w.style(t,n,i,s)},t,a?i:void 0,a)}})}),w.each("blur focus focusin focusout resize scroll click dblclick mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave change select submit keydown keypress keyup contextmenu".split(" "),function(e,t){w.fn[t]=function(e,n){return arguments.length>0?this.on(t,null,e,n):this.trigger(t)}}),w.fn.extend({hover:function(e,t){return this.mouseenter(e).mouseleave(t||e)}}),w.fn.extend({bind:function(e,t,n){return this.on(e,null,t,n)},unbind:function(e,t){return this.off(e,null,t)},delegate:function(e,t,n,r){return this.on(t,e,n,r)},undelegate:function(e,t,n){return 1===arguments.length?this.off(e,"**"):this.off(t,e||"**",n)}}),w.proxy=function(e,t){var n,r,i;if("string"==typeof t&&(n=e[t],t=e,e=n),g(e))return r=o.call(arguments,2),i=function(){return e.apply(t||this,r.concat(o.call(arguments)))},i.guid=e.guid=e.guid||w.guid++,i},w.holdReady=function(e){e?w.readyWait++:w.ready(!0)},w.isArray=Array.isArray,w.parseJSON=JSON.parse,w.nodeName=N,w.isFunction=g,w.isWindow=y,w.camelCase=G,w.type=x,w.now=Date.now,w.isNumeric=function(e){var t=w.type(e);return("number"===t||"string"===t)&&!isNaN(e-parseFloat(e))},"function"==typeof define&&define.amd&&define("jquery",[],function(){return w});var Jt=e.jQuery,Kt=e.$;return w.noConflict=function(t){return e.$===w&&(e.$=Kt),t&&e.jQuery===w&&(e.jQuery=Jt),w},t||(e.jQuery=e.$=w),w});
diff --git a/public/lib/vue-router.js b/public/lib/vue-router.js
index e69de29..3285a76 100644
--- a/public/lib/vue-router.js
+++ b/public/lib/vue-router.js
@@ -0,0 +1,2631 @@
+/**
+  * vue-router v3.0.1
+  * (c) 2017 Evan You
+  * @license MIT
+  */
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+	typeof define === 'function' && define.amd ? define(factory) :
+	(global.VueRouter = factory());
+}(this, (function () { 'use strict';
+
+/*  */
+
+function assert (condition, message) {
+  if (!condition) {
+    throw new Error(("[vue-router] " + message))
+  }
+}
+
+function warn (condition, message) {
+  if ("development" !== 'production' && !condition) {
+    typeof console !== 'undefined' && console.warn(("[vue-router] " + message));
+  }
+}
+
+function isError (err) {
+  return Object.prototype.toString.call(err).indexOf('Error') > -1
+}
+
+var View = {
+  name: 'router-view',
+  functional: true,
+  props: {
+    name: {
+      type: String,
+      default: 'default'
+    }
+  },
+  render: function render (_, ref) {
+    var props = ref.props;
+    var children = ref.children;
+    var parent = ref.parent;
+    var data = ref.data;
+
+    data.routerView = true;
+
+    // directly use parent context's createElement() function
+    // so that components rendered by router-view can resolve named slots
+    var h = parent.$createElement;
+    var name = props.name;
+    var route = parent.$route;
+    var cache = parent._routerViewCache || (parent._routerViewCache = {});
+
+    // determine current view depth, also check to see if the tree
+    // has been toggled inactive but kept-alive.
+    var depth = 0;
+    var inactive = false;
+    while (parent && parent._routerRoot !== parent) {
+      if (parent.$vnode && parent.$vnode.data.routerView) {
+        depth++;
+      }
+      if (parent._inactive) {
+        inactive = true;
+      }
+      parent = parent.$parent;
+    }
+    data.routerViewDepth = depth;
+
+    // render previous view if the tree is inactive and kept-alive
+    if (inactive) {
+      return h(cache[name], data, children)
+    }
+
+    var matched = route.matched[depth];
+    // render empty node if no matched route
+    if (!matched) {
+      cache[name] = null;
+      return h()
+    }
+
+    var component = cache[name] = matched.components[name];
+
+    // attach instance registration hook
+    // this will be called in the instance's injected lifecycle hooks
+    data.registerRouteInstance = function (vm, val) {
+      // val could be undefined for unregistration
+      var current = matched.instances[name];
+      if (
+        (val && current !== vm) ||
+        (!val && current === vm)
+      ) {
+        matched.instances[name] = val;
+      }
+    }
+
+    // also register instance in prepatch hook
+    // in case the same component instance is reused across different routes
+    ;(data.hook || (data.hook = {})).prepatch = function (_, vnode) {
+      matched.instances[name] = vnode.componentInstance;
+    };
+
+    // resolve props
+    var propsToPass = data.props = resolveProps(route, matched.props && matched.props[name]);
+    if (propsToPass) {
+      // clone to prevent mutation
+      propsToPass = data.props = extend({}, propsToPass);
+      // pass non-declared props as attrs
+      var attrs = data.attrs = data.attrs || {};
+      for (var key in propsToPass) {
+        if (!component.props || !(key in component.props)) {
+          attrs[key] = propsToPass[key];
+          delete propsToPass[key];
+        }
+      }
+    }
+
+    return h(component, data, children)
+  }
+};
+
+function resolveProps (route, config) {
+  switch (typeof config) {
+    case 'undefined':
+      return
+    case 'object':
+      return config
+    case 'function':
+      return config(route)
+    case 'boolean':
+      return config ? route.params : undefined
+    default:
+      {
+        warn(
+          false,
+          "props in \"" + (route.path) + "\" is a " + (typeof config) + ", " +
+          "expecting an object, function or boolean."
+        );
+      }
+  }
+}
+
+function extend (to, from) {
+  for (var key in from) {
+    to[key] = from[key];
+  }
+  return to
+}
+
+/*  */
+
+var encodeReserveRE = /[!'()*]/g;
+var encodeReserveReplacer = function (c) { return '%' + c.charCodeAt(0).toString(16); };
+var commaRE = /%2C/g;
+
+// fixed encodeURIComponent which is more conformant to RFC3986:
+// - escapes [!'()*]
+// - preserve commas
+var encode = function (str) { return encodeURIComponent(str)
+  .replace(encodeReserveRE, encodeReserveReplacer)
+  .replace(commaRE, ','); };
+
+var decode = decodeURIComponent;
+
+function resolveQuery (
+  query,
+  extraQuery,
+  _parseQuery
+) {
+  if ( extraQuery === void 0 ) extraQuery = {};
+
+  var parse = _parseQuery || parseQuery;
+  var parsedQuery;
+  try {
+    parsedQuery = parse(query || '');
+  } catch (e) {
+    "development" !== 'production' && warn(false, e.message);
+    parsedQuery = {};
+  }
+  for (var key in extraQuery) {
+    parsedQuery[key] = extraQuery[key];
+  }
+  return parsedQuery
+}
+
+function parseQuery (query) {
+  var res = {};
+
+  query = query.trim().replace(/^(\?|#|&)/, '');
+
+  if (!query) {
+    return res
+  }
+
+  query.split('&').forEach(function (param) {
+    var parts = param.replace(/\+/g, ' ').split('=');
+    var key = decode(parts.shift());
+    var val = parts.length > 0
+      ? decode(parts.join('='))
+      : null;
+
+    if (res[key] === undefined) {
+      res[key] = val;
+    } else if (Array.isArray(res[key])) {
+      res[key].push(val);
+    } else {
+      res[key] = [res[key], val];
+    }
+  });
+
+  return res
+}
+
+function stringifyQuery (obj) {
+  var res = obj ? Object.keys(obj).map(function (key) {
+    var val = obj[key];
+
+    if (val === undefined) {
+      return ''
+    }
+
+    if (val === null) {
+      return encode(key)
+    }
+
+    if (Array.isArray(val)) {
+      var result = [];
+      val.forEach(function (val2) {
+        if (val2 === undefined) {
+          return
+        }
+        if (val2 === null) {
+          result.push(encode(key));
+        } else {
+          result.push(encode(key) + '=' + encode(val2));
+        }
+      });
+      return result.join('&')
+    }
+
+    return encode(key) + '=' + encode(val)
+  }).filter(function (x) { return x.length > 0; }).join('&') : null;
+  return res ? ("?" + res) : ''
+}
+
+/*  */
+
+
+var trailingSlashRE = /\/?$/;
+
+function createRoute (
+  record,
+  location,
+  redirectedFrom,
+  router
+) {
+  var stringifyQuery$$1 = router && router.options.stringifyQuery;
+
+  var query = location.query || {};
+  try {
+    query = clone(query);
+  } catch (e) {}
+
+  var route = {
+    name: location.name || (record && record.name),
+    meta: (record && record.meta) || {},
+    path: location.path || '/',
+    hash: location.hash || '',
+    query: query,
+    params: location.params || {},
+    fullPath: getFullPath(location, stringifyQuery$$1),
+    matched: record ? formatMatch(record) : []
+  };
+  if (redirectedFrom) {
+    route.redirectedFrom = getFullPath(redirectedFrom, stringifyQuery$$1);
+  }
+  return Object.freeze(route)
+}
+
+function clone (value) {
+  if (Array.isArray(value)) {
+    return value.map(clone)
+  } else if (value && typeof value === 'object') {
+    var res = {};
+    for (var key in value) {
+      res[key] = clone(value[key]);
+    }
+    return res
+  } else {
+    return value
+  }
+}
+
+// the starting route that represents the initial state
+var START = createRoute(null, {
+  path: '/'
+});
+
+function formatMatch (record) {
+  var res = [];
+  while (record) {
+    res.unshift(record);
+    record = record.parent;
+  }
+  return res
+}
+
+function getFullPath (
+  ref,
+  _stringifyQuery
+) {
+  var path = ref.path;
+  var query = ref.query; if ( query === void 0 ) query = {};
+  var hash = ref.hash; if ( hash === void 0 ) hash = '';
+
+  var stringify = _stringifyQuery || stringifyQuery;
+  return (path || '/') + stringify(query) + hash
+}
+
+function isSameRoute (a, b) {
+  if (b === START) {
+    return a === b
+  } else if (!b) {
+    return false
+  } else if (a.path && b.path) {
+    return (
+      a.path.replace(trailingSlashRE, '') === b.path.replace(trailingSlashRE, '') &&
+      a.hash === b.hash &&
+      isObjectEqual(a.query, b.query)
+    )
+  } else if (a.name && b.name) {
+    return (
+      a.name === b.name &&
+      a.hash === b.hash &&
+      isObjectEqual(a.query, b.query) &&
+      isObjectEqual(a.params, b.params)
+    )
+  } else {
+    return false
+  }
+}
+
+function isObjectEqual (a, b) {
+  if ( a === void 0 ) a = {};
+  if ( b === void 0 ) b = {};
+
+  // handle null value #1566
+  if (!a || !b) { return a === b }
+  var aKeys = Object.keys(a);
+  var bKeys = Object.keys(b);
+  if (aKeys.length !== bKeys.length) {
+    return false
+  }
+  return aKeys.every(function (key) {
+    var aVal = a[key];
+    var bVal = b[key];
+    // check nested equality
+    if (typeof aVal === 'object' && typeof bVal === 'object') {
+      return isObjectEqual(aVal, bVal)
+    }
+    return String(aVal) === String(bVal)
+  })
+}
+
+function isIncludedRoute (current, target) {
+  return (
+    current.path.replace(trailingSlashRE, '/').indexOf(
+      target.path.replace(trailingSlashRE, '/')
+    ) === 0 &&
+    (!target.hash || current.hash === target.hash) &&
+    queryIncludes(current.query, target.query)
+  )
+}
+
+function queryIncludes (current, target) {
+  for (var key in target) {
+    if (!(key in current)) {
+      return false
+    }
+  }
+  return true
+}
+
+/*  */
+
+// work around weird flow bug
+var toTypes = [String, Object];
+var eventTypes = [String, Array];
+
+var Link = {
+  name: 'router-link',
+  props: {
+    to: {
+      type: toTypes,
+      required: true
+    },
+    tag: {
+      type: String,
+      default: 'a'
+    },
+    exact: Boolean,
+    append: Boolean,
+    replace: Boolean,
+    activeClass: String,
+    exactActiveClass: String,
+    event: {
+      type: eventTypes,
+      default: 'click'
+    }
+  },
+  render: function render (h) {
+    var this$1 = this;
+
+    var router = this.$router;
+    var current = this.$route;
+    var ref = router.resolve(this.to, current, this.append);
+    var location = ref.location;
+    var route = ref.route;
+    var href = ref.href;
+
+    var classes = {};
+    var globalActiveClass = router.options.linkActiveClass;
+    var globalExactActiveClass = router.options.linkExactActiveClass;
+    // Support global empty active class
+    var activeClassFallback = globalActiveClass == null
+            ? 'router-link-active'
+            : globalActiveClass;
+    var exactActiveClassFallback = globalExactActiveClass == null
+            ? 'router-link-exact-active'
+            : globalExactActiveClass;
+    var activeClass = this.activeClass == null
+            ? activeClassFallback
+            : this.activeClass;
+    var exactActiveClass = this.exactActiveClass == null
+            ? exactActiveClassFallback
+            : this.exactActiveClass;
+    var compareTarget = location.path
+      ? createRoute(null, location, null, router)
+      : route;
+
+    classes[exactActiveClass] = isSameRoute(current, compareTarget);
+    classes[activeClass] = this.exact
+      ? classes[exactActiveClass]
+      : isIncludedRoute(current, compareTarget);
+
+    var handler = function (e) {
+      if (guardEvent(e)) {
+        if (this$1.replace) {
+          router.replace(location);
+        } else {
+          router.push(location);
+        }
+      }
+    };
+
+    var on = { click: guardEvent };
+    if (Array.isArray(this.event)) {
+      this.event.forEach(function (e) { on[e] = handler; });
+    } else {
+      on[this.event] = handler;
+    }
+
+    var data = {
+      class: classes
+    };
+
+    if (this.tag === 'a') {
+      data.on = on;
+      data.attrs = { href: href };
+    } else {
+      // find the first <a> child and apply listener and href
+      var a = findAnchor(this.$slots.default);
+      if (a) {
+        // in case the <a> is a static node
+        a.isStatic = false;
+        var extend = _Vue.util.extend;
+        var aData = a.data = extend({}, a.data);
+        aData.on = on;
+        var aAttrs = a.data.attrs = extend({}, a.data.attrs);
+        aAttrs.href = href;
+      } else {
+        // doesn't have <a> child, apply listener to self
+        data.on = on;
+      }
+    }
+
+    return h(this.tag, data, this.$slots.default)
+  }
+};
+
+function guardEvent (e) {
+  // don't redirect with control keys
+  if (e.metaKey || e.altKey || e.ctrlKey || e.shiftKey) { return }
+  // don't redirect when preventDefault called
+  if (e.defaultPrevented) { return }
+  // don't redirect on right click
+  if (e.button !== undefined && e.button !== 0) { return }
+  // don't redirect if `target="_blank"`
+  if (e.currentTarget && e.currentTarget.getAttribute) {
+    var target = e.currentTarget.getAttribute('target');
+    if (/\b_blank\b/i.test(target)) { return }
+  }
+  // this may be a Weex event which doesn't have this method
+  if (e.preventDefault) {
+    e.preventDefault();
+  }
+  return true
+}
+
+function findAnchor (children) {
+  if (children) {
+    var child;
+    for (var i = 0; i < children.length; i++) {
+      child = children[i];
+      if (child.tag === 'a') {
+        return child
+      }
+      if (child.children && (child = findAnchor(child.children))) {
+        return child
+      }
+    }
+  }
+}
+
+var _Vue;
+
+function install (Vue) {
+  if (install.installed && _Vue === Vue) { return }
+  install.installed = true;
+
+  _Vue = Vue;
+
+  var isDef = function (v) { return v !== undefined; };
+
+  var registerInstance = function (vm, callVal) {
+    var i = vm.$options._parentVnode;
+    if (isDef(i) && isDef(i = i.data) && isDef(i = i.registerRouteInstance)) {
+      i(vm, callVal);
+    }
+  };
+
+  Vue.mixin({
+    beforeCreate: function beforeCreate () {
+      if (isDef(this.$options.router)) {
+        this._routerRoot = this;
+        this._router = this.$options.router;
+        this._router.init(this);
+        Vue.util.defineReactive(this, '_route', this._router.history.current);
+      } else {
+        this._routerRoot = (this.$parent && this.$parent._routerRoot) || this;
+      }
+      registerInstance(this, this);
+    },
+    destroyed: function destroyed () {
+      registerInstance(this);
+    }
+  });
+
+  Object.defineProperty(Vue.prototype, '$router', {
+    get: function get () { return this._routerRoot._router }
+  });
+
+  Object.defineProperty(Vue.prototype, '$route', {
+    get: function get () { return this._routerRoot._route }
+  });
+
+  Vue.component('router-view', View);
+  Vue.component('router-link', Link);
+
+  var strats = Vue.config.optionMergeStrategies;
+  // use the same hook merging strategy for route hooks
+  strats.beforeRouteEnter = strats.beforeRouteLeave = strats.beforeRouteUpdate = strats.created;
+}
+
+/*  */
+
+var inBrowser = typeof window !== 'undefined';
+
+/*  */
+
+function resolvePath (
+  relative,
+  base,
+  append
+) {
+  var firstChar = relative.charAt(0);
+  if (firstChar === '/') {
+    return relative
+  }
+
+  if (firstChar === '?' || firstChar === '#') {
+    return base + relative
+  }
+
+  var stack = base.split('/');
+
+  // remove trailing segment if:
+  // - not appending
+  // - appending to trailing slash (last segment is empty)
+  if (!append || !stack[stack.length - 1]) {
+    stack.pop();
+  }
+
+  // resolve relative path
+  var segments = relative.replace(/^\//, '').split('/');
+  for (var i = 0; i < segments.length; i++) {
+    var segment = segments[i];
+    if (segment === '..') {
+      stack.pop();
+    } else if (segment !== '.') {
+      stack.push(segment);
+    }
+  }
+
+  // ensure leading slash
+  if (stack[0] !== '') {
+    stack.unshift('');
+  }
+
+  return stack.join('/')
+}
+
+function parsePath (path) {
+  var hash = '';
+  var query = '';
+
+  var hashIndex = path.indexOf('#');
+  if (hashIndex >= 0) {
+    hash = path.slice(hashIndex);
+    path = path.slice(0, hashIndex);
+  }
+
+  var queryIndex = path.indexOf('?');
+  if (queryIndex >= 0) {
+    query = path.slice(queryIndex + 1);
+    path = path.slice(0, queryIndex);
+  }
+
+  return {
+    path: path,
+    query: query,
+    hash: hash
+  }
+}
+
+function cleanPath (path) {
+  return path.replace(/\/\//g, '/')
+}
+
+var isarray = Array.isArray || function (arr) {
+  return Object.prototype.toString.call(arr) == '[object Array]';
+};
+
+/**
+ * Expose `pathToRegexp`.
+ */
+var pathToRegexp_1 = pathToRegexp;
+var parse_1 = parse;
+var compile_1 = compile;
+var tokensToFunction_1 = tokensToFunction;
+var tokensToRegExp_1 = tokensToRegExp;
+
+/**
+ * The main path matching regexp utility.
+ *
+ * @type {RegExp}
+ */
+var PATH_REGEXP = new RegExp([
+  // Match escaped characters that would otherwise appear in future matches.
+  // This allows the user to escape special characters that won't transform.
+  '(\\\\.)',
+  // Match Express-style parameters and un-named parameters with a prefix
+  // and optional suffixes. Matches appear as:
+  //
+  // "/:test(\\d+)?" => ["/", "test", "\d+", undefined, "?", undefined]
+  // "/route(\\d+)"  => [undefined, undefined, undefined, "\d+", undefined, undefined]
+  // "/*"            => ["/", undefined, undefined, undefined, undefined, "*"]
+  '([\\/.])?(?:(?:\\:(\\w+)(?:\\(((?:\\\\.|[^\\\\()])+)\\))?|\\(((?:\\\\.|[^\\\\()])+)\\))([+*?])?|(\\*))'
+].join('|'), 'g');
+
+/**
+ * Parse a string for the raw tokens.
+ *
+ * @param  {string}  str
+ * @param  {Object=} options
+ * @return {!Array}
+ */
+function parse (str, options) {
+  var tokens = [];
+  var key = 0;
+  var index = 0;
+  var path = '';
+  var defaultDelimiter = options && options.delimiter || '/';
+  var res;
+
+  while ((res = PATH_REGEXP.exec(str)) != null) {
+    var m = res[0];
+    var escaped = res[1];
+    var offset = res.index;
+    path += str.slice(index, offset);
+    index = offset + m.length;
+
+    // Ignore already escaped sequences.
+    if (escaped) {
+      path += escaped[1];
+      continue
+    }
+
+    var next = str[index];
+    var prefix = res[2];
+    var name = res[3];
+    var capture = res[4];
+    var group = res[5];
+    var modifier = res[6];
+    var asterisk = res[7];
+
+    // Push the current path onto the tokens.
+    if (path) {
+      tokens.push(path);
+      path = '';
+    }
+
+    var partial = prefix != null && next != null && next !== prefix;
+    var repeat = modifier === '+' || modifier === '*';
+    var optional = modifier === '?' || modifier === '*';
+    var delimiter = res[2] || defaultDelimiter;
+    var pattern = capture || group;
+
+    tokens.push({
+      name: name || key++,
+      prefix: prefix || '',
+      delimiter: delimiter,
+      optional: optional,
+      repeat: repeat,
+      partial: partial,
+      asterisk: !!asterisk,
+      pattern: pattern ? escapeGroup(pattern) : (asterisk ? '.*' : '[^' + escapeString(delimiter) + ']+?')
+    });
+  }
+
+  // Match any characters still remaining.
+  if (index < str.length) {
+    path += str.substr(index);
+  }
+
+  // If the path exists, push it onto the end.
+  if (path) {
+    tokens.push(path);
+  }
+
+  return tokens
+}
+
+/**
+ * Compile a string to a template function for the path.
+ *
+ * @param  {string}             str
+ * @param  {Object=}            options
+ * @return {!function(Object=, Object=)}
+ */
+function compile (str, options) {
+  return tokensToFunction(parse(str, options))
+}
+
+/**
+ * Prettier encoding of URI path segments.
+ *
+ * @param  {string}
+ * @return {string}
+ */
+function encodeURIComponentPretty (str) {
+  return encodeURI(str).replace(/[\/?#]/g, function (c) {
+    return '%' + c.charCodeAt(0).toString(16).toUpperCase()
+  })
+}
+
+/**
+ * Encode the asterisk parameter. Similar to `pretty`, but allows slashes.
+ *
+ * @param  {string}
+ * @return {string}
+ */
+function encodeAsterisk (str) {
+  return encodeURI(str).replace(/[?#]/g, function (c) {
+    return '%' + c.charCodeAt(0).toString(16).toUpperCase()
+  })
+}
+
+/**
+ * Expose a method for transforming tokens into the path function.
+ */
+function tokensToFunction (tokens) {
+  // Compile all the tokens into regexps.
+  var matches = new Array(tokens.length);
+
+  // Compile all the patterns before compilation.
+  for (var i = 0; i < tokens.length; i++) {
+    if (typeof tokens[i] === 'object') {
+      matches[i] = new RegExp('^(?:' + tokens[i].pattern + ')$');
+    }
+  }
+
+  return function (obj, opts) {
+    var path = '';
+    var data = obj || {};
+    var options = opts || {};
+    var encode = options.pretty ? encodeURIComponentPretty : encodeURIComponent;
+
+    for (var i = 0; i < tokens.length; i++) {
+      var token = tokens[i];
+
+      if (typeof token === 'string') {
+        path += token;
+
+        continue
+      }
+
+      var value = data[token.name];
+      var segment;
+
+      if (value == null) {
+        if (token.optional) {
+          // Prepend partial segment prefixes.
+          if (token.partial) {
+            path += token.prefix;
+          }
+
+          continue
+        } else {
+          throw new TypeError('Expected "' + token.name + '" to be defined')
+        }
+      }
+
+      if (isarray(value)) {
+        if (!token.repeat) {
+          throw new TypeError('Expected "' + token.name + '" to not repeat, but received `' + JSON.stringify(value) + '`')
+        }
+
+        if (value.length === 0) {
+          if (token.optional) {
+            continue
+          } else {
+            throw new TypeError('Expected "' + token.name + '" to not be empty')
+          }
+        }
+
+        for (var j = 0; j < value.length; j++) {
+          segment = encode(value[j]);
+
+          if (!matches[i].test(segment)) {
+            throw new TypeError('Expected all "' + token.name + '" to match "' + token.pattern + '", but received `' + JSON.stringify(segment) + '`')
+          }
+
+          path += (j === 0 ? token.prefix : token.delimiter) + segment;
+        }
+
+        continue
+      }
+
+      segment = token.asterisk ? encodeAsterisk(value) : encode(value);
+
+      if (!matches[i].test(segment)) {
+        throw new TypeError('Expected "' + token.name + '" to match "' + token.pattern + '", but received "' + segment + '"')
+      }
+
+      path += token.prefix + segment;
+    }
+
+    return path
+  }
+}
+
+/**
+ * Escape a regular expression string.
+ *
+ * @param  {string} str
+ * @return {string}
+ */
+function escapeString (str) {
+  return str.replace(/([.+*?=^!:${}()[\]|\/\\])/g, '\\$1')
+}
+
+/**
+ * Escape the capturing group by escaping special characters and meaning.
+ *
+ * @param  {string} group
+ * @return {string}
+ */
+function escapeGroup (group) {
+  return group.replace(/([=!:$\/()])/g, '\\$1')
+}
+
+/**
+ * Attach the keys as a property of the regexp.
+ *
+ * @param  {!RegExp} re
+ * @param  {Array}   keys
+ * @return {!RegExp}
+ */
+function attachKeys (re, keys) {
+  re.keys = keys;
+  return re
+}
+
+/**
+ * Get the flags for a regexp from the options.
+ *
+ * @param  {Object} options
+ * @return {string}
+ */
+function flags (options) {
+  return options.sensitive ? '' : 'i'
+}
+
+/**
+ * Pull out keys from a regexp.
+ *
+ * @param  {!RegExp} path
+ * @param  {!Array}  keys
+ * @return {!RegExp}
+ */
+function regexpToRegexp (path, keys) {
+  // Use a negative lookahead to match only capturing groups.
+  var groups = path.source.match(/\((?!\?)/g);
+
+  if (groups) {
+    for (var i = 0; i < groups.length; i++) {
+      keys.push({
+        name: i,
+        prefix: null,
+        delimiter: null,
+        optional: false,
+        repeat: false,
+        partial: false,
+        asterisk: false,
+        pattern: null
+      });
+    }
+  }
+
+  return attachKeys(path, keys)
+}
+
+/**
+ * Transform an array into a regexp.
+ *
+ * @param  {!Array}  path
+ * @param  {Array}   keys
+ * @param  {!Object} options
+ * @return {!RegExp}
+ */
+function arrayToRegexp (path, keys, options) {
+  var parts = [];
+
+  for (var i = 0; i < path.length; i++) {
+    parts.push(pathToRegexp(path[i], keys, options).source);
+  }
+
+  var regexp = new RegExp('(?:' + parts.join('|') + ')', flags(options));
+
+  return attachKeys(regexp, keys)
+}
+
+/**
+ * Create a path regexp from string input.
+ *
+ * @param  {string}  path
+ * @param  {!Array}  keys
+ * @param  {!Object} options
+ * @return {!RegExp}
+ */
+function stringToRegexp (path, keys, options) {
+  return tokensToRegExp(parse(path, options), keys, options)
+}
+
+/**
+ * Expose a function for taking tokens and returning a RegExp.
+ *
+ * @param  {!Array}          tokens
+ * @param  {(Array|Object)=} keys
+ * @param  {Object=}         options
+ * @return {!RegExp}
+ */
+function tokensToRegExp (tokens, keys, options) {
+  if (!isarray(keys)) {
+    options = /** @type {!Object} */ (keys || options);
+    keys = [];
+  }
+
+  options = options || {};
+
+  var strict = options.strict;
+  var end = options.end !== false;
+  var route = '';
+
+  // Iterate over the tokens and create our regexp string.
+  for (var i = 0; i < tokens.length; i++) {
+    var token = tokens[i];
+
+    if (typeof token === 'string') {
+      route += escapeString(token);
+    } else {
+      var prefix = escapeString(token.prefix);
+      var capture = '(?:' + token.pattern + ')';
+
+      keys.push(token);
+
+      if (token.repeat) {
+        capture += '(?:' + prefix + capture + ')*';
+      }
+
+      if (token.optional) {
+        if (!token.partial) {
+          capture = '(?:' + prefix + '(' + capture + '))?';
+        } else {
+          capture = prefix + '(' + capture + ')?';
+        }
+      } else {
+        capture = prefix + '(' + capture + ')';
+      }
+
+      route += capture;
+    }
+  }
+
+  var delimiter = escapeString(options.delimiter || '/');
+  var endsWithDelimiter = route.slice(-delimiter.length) === delimiter;
+
+  // In non-strict mode we allow a slash at the end of match. If the path to
+  // match already ends with a slash, we remove it for consistency. The slash
+  // is valid at the end of a path match, not in the middle. This is important
+  // in non-ending mode, where "/test/" shouldn't match "/test//route".
+  if (!strict) {
+    route = (endsWithDelimiter ? route.slice(0, -delimiter.length) : route) + '(?:' + delimiter + '(?=$))?';
+  }
+
+  if (end) {
+    route += '$';
+  } else {
+    // In non-ending mode, we need the capturing groups to match as much as
+    // possible by using a positive lookahead to the end or next path segment.
+    route += strict && endsWithDelimiter ? '' : '(?=' + delimiter + '|$)';
+  }
+
+  return attachKeys(new RegExp('^' + route, flags(options)), keys)
+}
+
+/**
+ * Normalize the given path string, returning a regular expression.
+ *
+ * An empty array can be passed in for the keys, which will hold the
+ * placeholder key descriptions. For example, using `/user/:id`, `keys` will
+ * contain `[{ name: 'id', delimiter: '/', optional: false, repeat: false }]`.
+ *
+ * @param  {(string|RegExp|Array)} path
+ * @param  {(Array|Object)=}       keys
+ * @param  {Object=}               options
+ * @return {!RegExp}
+ */
+function pathToRegexp (path, keys, options) {
+  if (!isarray(keys)) {
+    options = /** @type {!Object} */ (keys || options);
+    keys = [];
+  }
+
+  options = options || {};
+
+  if (path instanceof RegExp) {
+    return regexpToRegexp(path, /** @type {!Array} */ (keys))
+  }
+
+  if (isarray(path)) {
+    return arrayToRegexp(/** @type {!Array} */ (path), /** @type {!Array} */ (keys), options)
+  }
+
+  return stringToRegexp(/** @type {string} */ (path), /** @type {!Array} */ (keys), options)
+}
+
+pathToRegexp_1.parse = parse_1;
+pathToRegexp_1.compile = compile_1;
+pathToRegexp_1.tokensToFunction = tokensToFunction_1;
+pathToRegexp_1.tokensToRegExp = tokensToRegExp_1;
+
+/*  */
+
+// $flow-disable-line
+var regexpCompileCache = Object.create(null);
+
+function fillParams (
+  path,
+  params,
+  routeMsg
+) {
+  try {
+    var filler =
+      regexpCompileCache[path] ||
+      (regexpCompileCache[path] = pathToRegexp_1.compile(path));
+    return filler(params || {}, { pretty: true })
+  } catch (e) {
+    {
+      warn(false, ("missing param for " + routeMsg + ": " + (e.message)));
+    }
+    return ''
+  }
+}
+
+/*  */
+
+function createRouteMap (
+  routes,
+  oldPathList,
+  oldPathMap,
+  oldNameMap
+) {
+  // the path list is used to control path matching priority
+  var pathList = oldPathList || [];
+  // $flow-disable-line
+  var pathMap = oldPathMap || Object.create(null);
+  // $flow-disable-line
+  var nameMap = oldNameMap || Object.create(null);
+
+  routes.forEach(function (route) {
+    addRouteRecord(pathList, pathMap, nameMap, route);
+  });
+
+  // ensure wildcard routes are always at the end
+  for (var i = 0, l = pathList.length; i < l; i++) {
+    if (pathList[i] === '*') {
+      pathList.push(pathList.splice(i, 1)[0]);
+      l--;
+      i--;
+    }
+  }
+
+  return {
+    pathList: pathList,
+    pathMap: pathMap,
+    nameMap: nameMap
+  }
+}
+
+function addRouteRecord (
+  pathList,
+  pathMap,
+  nameMap,
+  route,
+  parent,
+  matchAs
+) {
+  var path = route.path;
+  var name = route.name;
+  {
+    assert(path != null, "\"path\" is required in a route configuration.");
+    assert(
+      typeof route.component !== 'string',
+      "route config \"component\" for path: " + (String(path || name)) + " cannot be a " +
+      "string id. Use an actual component instead."
+    );
+  }
+
+  var pathToRegexpOptions = route.pathToRegexpOptions || {};
+  var normalizedPath = normalizePath(
+    path,
+    parent,
+    pathToRegexpOptions.strict
+  );
+
+  if (typeof route.caseSensitive === 'boolean') {
+    pathToRegexpOptions.sensitive = route.caseSensitive;
+  }
+
+  var record = {
+    path: normalizedPath,
+    regex: compileRouteRegex(normalizedPath, pathToRegexpOptions),
+    components: route.components || { default: route.component },
+    instances: {},
+    name: name,
+    parent: parent,
+    matchAs: matchAs,
+    redirect: route.redirect,
+    beforeEnter: route.beforeEnter,
+    meta: route.meta || {},
+    props: route.props == null
+      ? {}
+      : route.components
+        ? route.props
+        : { default: route.props }
+  };
+
+  if (route.children) {
+    // Warn if route is named, does not redirect and has a default child route.
+    // If users navigate to this route by name, the default child will
+    // not be rendered (GH Issue #629)
+    {
+      if (route.name && !route.redirect && route.children.some(function (child) { return /^\/?$/.test(child.path); })) {
+        warn(
+          false,
+          "Named Route '" + (route.name) + "' has a default child route. " +
+          "When navigating to this named route (:to=\"{name: '" + (route.name) + "'\"), " +
+          "the default child route will not be rendered. Remove the name from " +
+          "this route and use the name of the default child route for named " +
+          "links instead."
+        );
+      }
+    }
+    route.children.forEach(function (child) {
+      var childMatchAs = matchAs
+        ? cleanPath((matchAs + "/" + (child.path)))
+        : undefined;
+      addRouteRecord(pathList, pathMap, nameMap, child, record, childMatchAs);
+    });
+  }
+
+  if (route.alias !== undefined) {
+    var aliases = Array.isArray(route.alias)
+      ? route.alias
+      : [route.alias];
+
+    aliases.forEach(function (alias) {
+      var aliasRoute = {
+        path: alias,
+        children: route.children
+      };
+      addRouteRecord(
+        pathList,
+        pathMap,
+        nameMap,
+        aliasRoute,
+        parent,
+        record.path || '/' // matchAs
+      );
+    });
+  }
+
+  if (!pathMap[record.path]) {
+    pathList.push(record.path);
+    pathMap[record.path] = record;
+  }
+
+  if (name) {
+    if (!nameMap[name]) {
+      nameMap[name] = record;
+    } else if ("development" !== 'production' && !matchAs) {
+      warn(
+        false,
+        "Duplicate named routes definition: " +
+        "{ name: \"" + name + "\", path: \"" + (record.path) + "\" }"
+      );
+    }
+  }
+}
+
+function compileRouteRegex (path, pathToRegexpOptions) {
+  var regex = pathToRegexp_1(path, [], pathToRegexpOptions);
+  {
+    var keys = Object.create(null);
+    regex.keys.forEach(function (key) {
+      warn(!keys[key.name], ("Duplicate param keys in route with path: \"" + path + "\""));
+      keys[key.name] = true;
+    });
+  }
+  return regex
+}
+
+function normalizePath (path, parent, strict) {
+  if (!strict) { path = path.replace(/\/$/, ''); }
+  if (path[0] === '/') { return path }
+  if (parent == null) { return path }
+  return cleanPath(((parent.path) + "/" + path))
+}
+
+/*  */
+
+
+function normalizeLocation (
+  raw,
+  current,
+  append,
+  router
+) {
+  var next = typeof raw === 'string' ? { path: raw } : raw;
+  // named target
+  if (next.name || next._normalized) {
+    return next
+  }
+
+  // relative params
+  if (!next.path && next.params && current) {
+    next = assign({}, next);
+    next._normalized = true;
+    var params = assign(assign({}, current.params), next.params);
+    if (current.name) {
+      next.name = current.name;
+      next.params = params;
+    } else if (current.matched.length) {
+      var rawPath = current.matched[current.matched.length - 1].path;
+      next.path = fillParams(rawPath, params, ("path " + (current.path)));
+    } else {
+      warn(false, "relative params navigation requires a current route.");
+    }
+    return next
+  }
+
+  var parsedPath = parsePath(next.path || '');
+  var basePath = (current && current.path) || '/';
+  var path = parsedPath.path
+    ? resolvePath(parsedPath.path, basePath, append || next.append)
+    : basePath;
+
+  var query = resolveQuery(
+    parsedPath.query,
+    next.query,
+    router && router.options.parseQuery
+  );
+
+  var hash = next.hash || parsedPath.hash;
+  if (hash && hash.charAt(0) !== '#') {
+    hash = "#" + hash;
+  }
+
+  return {
+    _normalized: true,
+    path: path,
+    query: query,
+    hash: hash
+  }
+}
+
+function assign (a, b) {
+  for (var key in b) {
+    a[key] = b[key];
+  }
+  return a
+}
+
+/*  */
+
+
+function createMatcher (
+  routes,
+  router
+) {
+  var ref = createRouteMap(routes);
+  var pathList = ref.pathList;
+  var pathMap = ref.pathMap;
+  var nameMap = ref.nameMap;
+
+  function addRoutes (routes) {
+    createRouteMap(routes, pathList, pathMap, nameMap);
+  }
+
+  function match (
+    raw,
+    currentRoute,
+    redirectedFrom
+  ) {
+    var location = normalizeLocation(raw, currentRoute, false, router);
+    var name = location.name;
+
+    if (name) {
+      var record = nameMap[name];
+      {
+        warn(record, ("Route with name '" + name + "' does not exist"));
+      }
+      if (!record) { return _createRoute(null, location) }
+      var paramNames = record.regex.keys
+        .filter(function (key) { return !key.optional; })
+        .map(function (key) { return key.name; });
+
+      if (typeof location.params !== 'object') {
+        location.params = {};
+      }
+
+      if (currentRoute && typeof currentRoute.params === 'object') {
+        for (var key in currentRoute.params) {
+          if (!(key in location.params) && paramNames.indexOf(key) > -1) {
+            location.params[key] = currentRoute.params[key];
+          }
+        }
+      }
+
+      if (record) {
+        location.path = fillParams(record.path, location.params, ("named route \"" + name + "\""));
+        return _createRoute(record, location, redirectedFrom)
+      }
+    } else if (location.path) {
+      location.params = {};
+      for (var i = 0; i < pathList.length; i++) {
+        var path = pathList[i];
+        var record$1 = pathMap[path];
+        if (matchRoute(record$1.regex, location.path, location.params)) {
+          return _createRoute(record$1, location, redirectedFrom)
+        }
+      }
+    }
+    // no match
+    return _createRoute(null, location)
+  }
+
+  function redirect (
+    record,
+    location
+  ) {
+    var originalRedirect = record.redirect;
+    var redirect = typeof originalRedirect === 'function'
+        ? originalRedirect(createRoute(record, location, null, router))
+        : originalRedirect;
+
+    if (typeof redirect === 'string') {
+      redirect = { path: redirect };
+    }
+
+    if (!redirect || typeof redirect !== 'object') {
+      {
+        warn(
+          false, ("invalid redirect option: " + (JSON.stringify(redirect)))
+        );
+      }
+      return _createRoute(null, location)
+    }
+
+    var re = redirect;
+    var name = re.name;
+    var path = re.path;
+    var query = location.query;
+    var hash = location.hash;
+    var params = location.params;
+    query = re.hasOwnProperty('query') ? re.query : query;
+    hash = re.hasOwnProperty('hash') ? re.hash : hash;
+    params = re.hasOwnProperty('params') ? re.params : params;
+
+    if (name) {
+      // resolved named direct
+      var targetRecord = nameMap[name];
+      {
+        assert(targetRecord, ("redirect failed: named route \"" + name + "\" not found."));
+      }
+      return match({
+        _normalized: true,
+        name: name,
+        query: query,
+        hash: hash,
+        params: params
+      }, undefined, location)
+    } else if (path) {
+      // 1. resolve relative redirect
+      var rawPath = resolveRecordPath(path, record);
+      // 2. resolve params
+      var resolvedPath = fillParams(rawPath, params, ("redirect route with path \"" + rawPath + "\""));
+      // 3. rematch with existing query and hash
+      return match({
+        _normalized: true,
+        path: resolvedPath,
+        query: query,
+        hash: hash
+      }, undefined, location)
+    } else {
+      {
+        warn(false, ("invalid redirect option: " + (JSON.stringify(redirect))));
+      }
+      return _createRoute(null, location)
+    }
+  }
+
+  function alias (
+    record,
+    location,
+    matchAs
+  ) {
+    var aliasedPath = fillParams(matchAs, location.params, ("aliased route with path \"" + matchAs + "\""));
+    var aliasedMatch = match({
+      _normalized: true,
+      path: aliasedPath
+    });
+    if (aliasedMatch) {
+      var matched = aliasedMatch.matched;
+      var aliasedRecord = matched[matched.length - 1];
+      location.params = aliasedMatch.params;
+      return _createRoute(aliasedRecord, location)
+    }
+    return _createRoute(null, location)
+  }
+
+  function _createRoute (
+    record,
+    location,
+    redirectedFrom
+  ) {
+    if (record && record.redirect) {
+      return redirect(record, redirectedFrom || location)
+    }
+    if (record && record.matchAs) {
+      return alias(record, location, record.matchAs)
+    }
+    return createRoute(record, location, redirectedFrom, router)
+  }
+
+  return {
+    match: match,
+    addRoutes: addRoutes
+  }
+}
+
+function matchRoute (
+  regex,
+  path,
+  params
+) {
+  var m = path.match(regex);
+
+  if (!m) {
+    return false
+  } else if (!params) {
+    return true
+  }
+
+  for (var i = 1, len = m.length; i < len; ++i) {
+    var key = regex.keys[i - 1];
+    var val = typeof m[i] === 'string' ? decodeURIComponent(m[i]) : m[i];
+    if (key) {
+      params[key.name] = val;
+    }
+  }
+
+  return true
+}
+
+function resolveRecordPath (path, record) {
+  return resolvePath(path, record.parent ? record.parent.path : '/', true)
+}
+
+/*  */
+
+
+var positionStore = Object.create(null);
+
+function setupScroll () {
+  // Fix for #1585 for Firefox
+  window.history.replaceState({ key: getStateKey() }, '');
+  window.addEventListener('popstate', function (e) {
+    saveScrollPosition();
+    if (e.state && e.state.key) {
+      setStateKey(e.state.key);
+    }
+  });
+}
+
+function handleScroll (
+  router,
+  to,
+  from,
+  isPop
+) {
+  if (!router.app) {
+    return
+  }
+
+  var behavior = router.options.scrollBehavior;
+  if (!behavior) {
+    return
+  }
+
+  {
+    assert(typeof behavior === 'function', "scrollBehavior must be a function");
+  }
+
+  // wait until re-render finishes before scrolling
+  router.app.$nextTick(function () {
+    var position = getScrollPosition();
+    var shouldScroll = behavior(to, from, isPop ? position : null);
+
+    if (!shouldScroll) {
+      return
+    }
+
+    if (typeof shouldScroll.then === 'function') {
+      shouldScroll.then(function (shouldScroll) {
+        scrollToPosition((shouldScroll), position);
+      }).catch(function (err) {
+        {
+          assert(false, err.toString());
+        }
+      });
+    } else {
+      scrollToPosition(shouldScroll, position);
+    }
+  });
+}
+
+function saveScrollPosition () {
+  var key = getStateKey();
+  if (key) {
+    positionStore[key] = {
+      x: window.pageXOffset,
+      y: window.pageYOffset
+    };
+  }
+}
+
+function getScrollPosition () {
+  var key = getStateKey();
+  if (key) {
+    return positionStore[key]
+  }
+}
+
+function getElementPosition (el, offset) {
+  var docEl = document.documentElement;
+  var docRect = docEl.getBoundingClientRect();
+  var elRect = el.getBoundingClientRect();
+  return {
+    x: elRect.left - docRect.left - offset.x,
+    y: elRect.top - docRect.top - offset.y
+  }
+}
+
+function isValidPosition (obj) {
+  return isNumber(obj.x) || isNumber(obj.y)
+}
+
+function normalizePosition (obj) {
+  return {
+    x: isNumber(obj.x) ? obj.x : window.pageXOffset,
+    y: isNumber(obj.y) ? obj.y : window.pageYOffset
+  }
+}
+
+function normalizeOffset (obj) {
+  return {
+    x: isNumber(obj.x) ? obj.x : 0,
+    y: isNumber(obj.y) ? obj.y : 0
+  }
+}
+
+function isNumber (v) {
+  return typeof v === 'number'
+}
+
+function scrollToPosition (shouldScroll, position) {
+  var isObject = typeof shouldScroll === 'object';
+  if (isObject && typeof shouldScroll.selector === 'string') {
+    var el = document.querySelector(shouldScroll.selector);
+    if (el) {
+      var offset = shouldScroll.offset && typeof shouldScroll.offset === 'object' ? shouldScroll.offset : {};
+      offset = normalizeOffset(offset);
+      position = getElementPosition(el, offset);
+    } else if (isValidPosition(shouldScroll)) {
+      position = normalizePosition(shouldScroll);
+    }
+  } else if (isObject && isValidPosition(shouldScroll)) {
+    position = normalizePosition(shouldScroll);
+  }
+
+  if (position) {
+    window.scrollTo(position.x, position.y);
+  }
+}
+
+/*  */
+
+var supportsPushState = inBrowser && (function () {
+  var ua = window.navigator.userAgent;
+
+  if (
+    (ua.indexOf('Android 2.') !== -1 || ua.indexOf('Android 4.0') !== -1) &&
+    ua.indexOf('Mobile Safari') !== -1 &&
+    ua.indexOf('Chrome') === -1 &&
+    ua.indexOf('Windows Phone') === -1
+  ) {
+    return false
+  }
+
+  return window.history && 'pushState' in window.history
+})();
+
+// use User Timing api (if present) for more accurate key precision
+var Time = inBrowser && window.performance && window.performance.now
+  ? window.performance
+  : Date;
+
+var _key = genKey();
+
+function genKey () {
+  return Time.now().toFixed(3)
+}
+
+function getStateKey () {
+  return _key
+}
+
+function setStateKey (key) {
+  _key = key;
+}
+
+function pushState (url, replace) {
+  saveScrollPosition();
+  // try...catch the pushState call to get around Safari
+  // DOM Exception 18 where it limits to 100 pushState calls
+  var history = window.history;
+  try {
+    if (replace) {
+      history.replaceState({ key: _key }, '', url);
+    } else {
+      _key = genKey();
+      history.pushState({ key: _key }, '', url);
+    }
+  } catch (e) {
+    window.location[replace ? 'replace' : 'assign'](url);
+  }
+}
+
+function replaceState (url) {
+  pushState(url, true);
+}
+
+/*  */
+
+function runQueue (queue, fn, cb) {
+  var step = function (index) {
+    if (index >= queue.length) {
+      cb();
+    } else {
+      if (queue[index]) {
+        fn(queue[index], function () {
+          step(index + 1);
+        });
+      } else {
+        step(index + 1);
+      }
+    }
+  };
+  step(0);
+}
+
+/*  */
+
+function resolveAsyncComponents (matched) {
+  return function (to, from, next) {
+    var hasAsync = false;
+    var pending = 0;
+    var error = null;
+
+    flatMapComponents(matched, function (def, _, match, key) {
+      // if it's a function and doesn't have cid attached,
+      // assume it's an async component resolve function.
+      // we are not using Vue's default async resolving mechanism because
+      // we want to halt the navigation until the incoming component has been
+      // resolved.
+      if (typeof def === 'function' && def.cid === undefined) {
+        hasAsync = true;
+        pending++;
+
+        var resolve = once(function (resolvedDef) {
+          if (isESModule(resolvedDef)) {
+            resolvedDef = resolvedDef.default;
+          }
+          // save resolved on async factory in case it's used elsewhere
+          def.resolved = typeof resolvedDef === 'function'
+            ? resolvedDef
+            : _Vue.extend(resolvedDef);
+          match.components[key] = resolvedDef;
+          pending--;
+          if (pending <= 0) {
+            next();
+          }
+        });
+
+        var reject = once(function (reason) {
+          var msg = "Failed to resolve async component " + key + ": " + reason;
+          "development" !== 'production' && warn(false, msg);
+          if (!error) {
+            error = isError(reason)
+              ? reason
+              : new Error(msg);
+            next(error);
+          }
+        });
+
+        var res;
+        try {
+          res = def(resolve, reject);
+        } catch (e) {
+          reject(e);
+        }
+        if (res) {
+          if (typeof res.then === 'function') {
+            res.then(resolve, reject);
+          } else {
+            // new syntax in Vue 2.3
+            var comp = res.component;
+            if (comp && typeof comp.then === 'function') {
+              comp.then(resolve, reject);
+            }
+          }
+        }
+      }
+    });
+
+    if (!hasAsync) { next(); }
+  }
+}
+
+function flatMapComponents (
+  matched,
+  fn
+) {
+  return flatten(matched.map(function (m) {
+    return Object.keys(m.components).map(function (key) { return fn(
+      m.components[key],
+      m.instances[key],
+      m, key
+    ); })
+  }))
+}
+
+function flatten (arr) {
+  return Array.prototype.concat.apply([], arr)
+}
+
+var hasSymbol =
+  typeof Symbol === 'function' &&
+  typeof Symbol.toStringTag === 'symbol';
+
+function isESModule (obj) {
+  return obj.__esModule || (hasSymbol && obj[Symbol.toStringTag] === 'Module')
+}
+
+// in Webpack 2, require.ensure now also returns a Promise
+// so the resolve/reject functions may get called an extra time
+// if the user uses an arrow function shorthand that happens to
+// return that Promise.
+function once (fn) {
+  var called = false;
+  return function () {
+    var args = [], len = arguments.length;
+    while ( len-- ) args[ len ] = arguments[ len ];
+
+    if (called) { return }
+    called = true;
+    return fn.apply(this, args)
+  }
+}
+
+/*  */
+
+var History = function History (router, base) {
+  this.router = router;
+  this.base = normalizeBase(base);
+  // start with a route object that stands for "nowhere"
+  this.current = START;
+  this.pending = null;
+  this.ready = false;
+  this.readyCbs = [];
+  this.readyErrorCbs = [];
+  this.errorCbs = [];
+};
+
+History.prototype.listen = function listen (cb) {
+  this.cb = cb;
+};
+
+History.prototype.onReady = function onReady (cb, errorCb) {
+  if (this.ready) {
+    cb();
+  } else {
+    this.readyCbs.push(cb);
+    if (errorCb) {
+      this.readyErrorCbs.push(errorCb);
+    }
+  }
+};
+
+History.prototype.onError = function onError (errorCb) {
+  this.errorCbs.push(errorCb);
+};
+
+History.prototype.transitionTo = function transitionTo (location, onComplete, onAbort) {
+    var this$1 = this;
+
+  var route = this.router.match(location, this.current);
+  this.confirmTransition(route, function () {
+    this$1.updateRoute(route);
+    onComplete && onComplete(route);
+    this$1.ensureURL();
+
+    // fire ready cbs once
+    if (!this$1.ready) {
+      this$1.ready = true;
+      this$1.readyCbs.forEach(function (cb) { cb(route); });
+    }
+  }, function (err) {
+    if (onAbort) {
+      onAbort(err);
+    }
+    if (err && !this$1.ready) {
+      this$1.ready = true;
+      this$1.readyErrorCbs.forEach(function (cb) { cb(err); });
+    }
+  });
+};
+
+History.prototype.confirmTransition = function confirmTransition (route, onComplete, onAbort) {
+    var this$1 = this;
+
+  var current = this.current;
+  var abort = function (err) {
+    if (isError(err)) {
+      if (this$1.errorCbs.length) {
+        this$1.errorCbs.forEach(function (cb) { cb(err); });
+      } else {
+        warn(false, 'uncaught error during route navigation:');
+        console.error(err);
+      }
+    }
+    onAbort && onAbort(err);
+  };
+  if (
+    isSameRoute(route, current) &&
+    // in the case the route map has been dynamically appended to
+    route.matched.length === current.matched.length
+  ) {
+    this.ensureURL();
+    return abort()
+  }
+
+  var ref = resolveQueue(this.current.matched, route.matched);
+    var updated = ref.updated;
+    var deactivated = ref.deactivated;
+    var activated = ref.activated;
+
+  var queue = [].concat(
+    // in-component leave guards
+    extractLeaveGuards(deactivated),
+    // global before hooks
+    this.router.beforeHooks,
+    // in-component update hooks
+    extractUpdateHooks(updated),
+    // in-config enter guards
+    activated.map(function (m) { return m.beforeEnter; }),
+    // async components
+    resolveAsyncComponents(activated)
+  );
+
+  this.pending = route;
+  var iterator = function (hook, next) {
+    if (this$1.pending !== route) {
+      return abort()
+    }
+    try {
+      hook(route, current, function (to) {
+        if (to === false || isError(to)) {
+          // next(false) -> abort navigation, ensure current URL
+          this$1.ensureURL(true);
+          abort(to);
+        } else if (
+          typeof to === 'string' ||
+          (typeof to === 'object' && (
+            typeof to.path === 'string' ||
+            typeof to.name === 'string'
+          ))
+        ) {
+          // next('/') or next({ path: '/' }) -> redirect
+          abort();
+          if (typeof to === 'object' && to.replace) {
+            this$1.replace(to);
+          } else {
+            this$1.push(to);
+          }
+        } else {
+          // confirm transition and pass on the value
+          next(to);
+        }
+      });
+    } catch (e) {
+      abort(e);
+    }
+  };
+
+  runQueue(queue, iterator, function () {
+    var postEnterCbs = [];
+    var isValid = function () { return this$1.current === route; };
+    // wait until async components are resolved before
+    // extracting in-component enter guards
+    var enterGuards = extractEnterGuards(activated, postEnterCbs, isValid);
+    var queue = enterGuards.concat(this$1.router.resolveHooks);
+    runQueue(queue, iterator, function () {
+      if (this$1.pending !== route) {
+        return abort()
+      }
+      this$1.pending = null;
+      onComplete(route);
+      if (this$1.router.app) {
+        this$1.router.app.$nextTick(function () {
+          postEnterCbs.forEach(function (cb) { cb(); });
+        });
+      }
+    });
+  });
+};
+
+History.prototype.updateRoute = function updateRoute (route) {
+  var prev = this.current;
+  this.current = route;
+  this.cb && this.cb(route);
+  this.router.afterHooks.forEach(function (hook) {
+    hook && hook(route, prev);
+  });
+};
+
+function normalizeBase (base) {
+  if (!base) {
+    if (inBrowser) {
+      // respect <base> tag
+      var baseEl = document.querySelector('base');
+      base = (baseEl && baseEl.getAttribute('href')) || '/';
+      // strip full URL origin
+      base = base.replace(/^https?:\/\/[^\/]+/, '');
+    } else {
+      base = '/';
+    }
+  }
+  // make sure there's the starting slash
+  if (base.charAt(0) !== '/') {
+    base = '/' + base;
+  }
+  // remove trailing slash
+  return base.replace(/\/$/, '')
+}
+
+function resolveQueue (
+  current,
+  next
+) {
+  var i;
+  var max = Math.max(current.length, next.length);
+  for (i = 0; i < max; i++) {
+    if (current[i] !== next[i]) {
+      break
+    }
+  }
+  return {
+    updated: next.slice(0, i),
+    activated: next.slice(i),
+    deactivated: current.slice(i)
+  }
+}
+
+function extractGuards (
+  records,
+  name,
+  bind,
+  reverse
+) {
+  var guards = flatMapComponents(records, function (def, instance, match, key) {
+    var guard = extractGuard(def, name);
+    if (guard) {
+      return Array.isArray(guard)
+        ? guard.map(function (guard) { return bind(guard, instance, match, key); })
+        : bind(guard, instance, match, key)
+    }
+  });
+  return flatten(reverse ? guards.reverse() : guards)
+}
+
+function extractGuard (
+  def,
+  key
+) {
+  if (typeof def !== 'function') {
+    // extend now so that global mixins are applied.
+    def = _Vue.extend(def);
+  }
+  return def.options[key]
+}
+
+function extractLeaveGuards (deactivated) {
+  return extractGuards(deactivated, 'beforeRouteLeave', bindGuard, true)
+}
+
+function extractUpdateHooks (updated) {
+  return extractGuards(updated, 'beforeRouteUpdate', bindGuard)
+}
+
+function bindGuard (guard, instance) {
+  if (instance) {
+    return function boundRouteGuard () {
+      return guard.apply(instance, arguments)
+    }
+  }
+}
+
+function extractEnterGuards (
+  activated,
+  cbs,
+  isValid
+) {
+  return extractGuards(activated, 'beforeRouteEnter', function (guard, _, match, key) {
+    return bindEnterGuard(guard, match, key, cbs, isValid)
+  })
+}
+
+function bindEnterGuard (
+  guard,
+  match,
+  key,
+  cbs,
+  isValid
+) {
+  return function routeEnterGuard (to, from, next) {
+    return guard(to, from, function (cb) {
+      next(cb);
+      if (typeof cb === 'function') {
+        cbs.push(function () {
+          // #750
+          // if a router-view is wrapped with an out-in transition,
+          // the instance may not have been registered at this time.
+          // we will need to poll for registration until current route
+          // is no longer valid.
+          poll(cb, match.instances, key, isValid);
+        });
+      }
+    })
+  }
+}
+
+function poll (
+  cb, // somehow flow cannot infer this is a function
+  instances,
+  key,
+  isValid
+) {
+  if (instances[key]) {
+    cb(instances[key]);
+  } else if (isValid()) {
+    setTimeout(function () {
+      poll(cb, instances, key, isValid);
+    }, 16);
+  }
+}
+
+/*  */
+
+
+var HTML5History = (function (History$$1) {
+  function HTML5History (router, base) {
+    var this$1 = this;
+
+    History$$1.call(this, router, base);
+
+    var expectScroll = router.options.scrollBehavior;
+
+    if (expectScroll) {
+      setupScroll();
+    }
+
+    var initLocation = getLocation(this.base);
+    window.addEventListener('popstate', function (e) {
+      var current = this$1.current;
+
+      // Avoiding first `popstate` event dispatched in some browsers but first
+      // history route not updated since async guard at the same time.
+      var location = getLocation(this$1.base);
+      if (this$1.current === START && location === initLocation) {
+        return
+      }
+
+      this$1.transitionTo(location, function (route) {
+        if (expectScroll) {
+          handleScroll(router, route, current, true);
+        }
+      });
+    });
+  }
+
+  if ( History$$1 ) HTML5History.__proto__ = History$$1;
+  HTML5History.prototype = Object.create( History$$1 && History$$1.prototype );
+  HTML5History.prototype.constructor = HTML5History;
+
+  HTML5History.prototype.go = function go (n) {
+    window.history.go(n);
+  };
+
+  HTML5History.prototype.push = function push (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    var ref = this;
+    var fromRoute = ref.current;
+    this.transitionTo(location, function (route) {
+      pushState(cleanPath(this$1.base + route.fullPath));
+      handleScroll(this$1.router, route, fromRoute, false);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  HTML5History.prototype.replace = function replace (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    var ref = this;
+    var fromRoute = ref.current;
+    this.transitionTo(location, function (route) {
+      replaceState(cleanPath(this$1.base + route.fullPath));
+      handleScroll(this$1.router, route, fromRoute, false);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  HTML5History.prototype.ensureURL = function ensureURL (push) {
+    if (getLocation(this.base) !== this.current.fullPath) {
+      var current = cleanPath(this.base + this.current.fullPath);
+      push ? pushState(current) : replaceState(current);
+    }
+  };
+
+  HTML5History.prototype.getCurrentLocation = function getCurrentLocation () {
+    return getLocation(this.base)
+  };
+
+  return HTML5History;
+}(History));
+
+function getLocation (base) {
+  var path = window.location.pathname;
+  if (base && path.indexOf(base) === 0) {
+    path = path.slice(base.length);
+  }
+  return (path || '/') + window.location.search + window.location.hash
+}
+
+/*  */
+
+
+var HashHistory = (function (History$$1) {
+  function HashHistory (router, base, fallback) {
+    History$$1.call(this, router, base);
+    // check history fallback deeplinking
+    if (fallback && checkFallback(this.base)) {
+      return
+    }
+    ensureSlash();
+  }
+
+  if ( History$$1 ) HashHistory.__proto__ = History$$1;
+  HashHistory.prototype = Object.create( History$$1 && History$$1.prototype );
+  HashHistory.prototype.constructor = HashHistory;
+
+  // this is delayed until the app mounts
+  // to avoid the hashchange listener being fired too early
+  HashHistory.prototype.setupListeners = function setupListeners () {
+    var this$1 = this;
+
+    var router = this.router;
+    var expectScroll = router.options.scrollBehavior;
+    var supportsScroll = supportsPushState && expectScroll;
+
+    if (supportsScroll) {
+      setupScroll();
+    }
+
+    window.addEventListener(supportsPushState ? 'popstate' : 'hashchange', function () {
+      var current = this$1.current;
+      if (!ensureSlash()) {
+        return
+      }
+      this$1.transitionTo(getHash(), function (route) {
+        if (supportsScroll) {
+          handleScroll(this$1.router, route, current, true);
+        }
+        if (!supportsPushState) {
+          replaceHash(route.fullPath);
+        }
+      });
+    });
+  };
+
+  HashHistory.prototype.push = function push (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    var ref = this;
+    var fromRoute = ref.current;
+    this.transitionTo(location, function (route) {
+      pushHash(route.fullPath);
+      handleScroll(this$1.router, route, fromRoute, false);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  HashHistory.prototype.replace = function replace (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    var ref = this;
+    var fromRoute = ref.current;
+    this.transitionTo(location, function (route) {
+      replaceHash(route.fullPath);
+      handleScroll(this$1.router, route, fromRoute, false);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  HashHistory.prototype.go = function go (n) {
+    window.history.go(n);
+  };
+
+  HashHistory.prototype.ensureURL = function ensureURL (push) {
+    var current = this.current.fullPath;
+    if (getHash() !== current) {
+      push ? pushHash(current) : replaceHash(current);
+    }
+  };
+
+  HashHistory.prototype.getCurrentLocation = function getCurrentLocation () {
+    return getHash()
+  };
+
+  return HashHistory;
+}(History));
+
+function checkFallback (base) {
+  var location = getLocation(base);
+  if (!/^\/#/.test(location)) {
+    window.location.replace(
+      cleanPath(base + '/#' + location)
+    );
+    return true
+  }
+}
+
+function ensureSlash () {
+  var path = getHash();
+  if (path.charAt(0) === '/') {
+    return true
+  }
+  replaceHash('/' + path);
+  return false
+}
+
+function getHash () {
+  // We can't use window.location.hash here because it's not
+  // consistent across browsers - Firefox will pre-decode it!
+  var href = window.location.href;
+  var index = href.indexOf('#');
+  return index === -1 ? '' : href.slice(index + 1)
+}
+
+function getUrl (path) {
+  var href = window.location.href;
+  var i = href.indexOf('#');
+  var base = i >= 0 ? href.slice(0, i) : href;
+  return (base + "#" + path)
+}
+
+function pushHash (path) {
+  if (supportsPushState) {
+    pushState(getUrl(path));
+  } else {
+    window.location.hash = path;
+  }
+}
+
+function replaceHash (path) {
+  if (supportsPushState) {
+    replaceState(getUrl(path));
+  } else {
+    window.location.replace(getUrl(path));
+  }
+}
+
+/*  */
+
+
+var AbstractHistory = (function (History$$1) {
+  function AbstractHistory (router, base) {
+    History$$1.call(this, router, base);
+    this.stack = [];
+    this.index = -1;
+  }
+
+  if ( History$$1 ) AbstractHistory.__proto__ = History$$1;
+  AbstractHistory.prototype = Object.create( History$$1 && History$$1.prototype );
+  AbstractHistory.prototype.constructor = AbstractHistory;
+
+  AbstractHistory.prototype.push = function push (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    this.transitionTo(location, function (route) {
+      this$1.stack = this$1.stack.slice(0, this$1.index + 1).concat(route);
+      this$1.index++;
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  AbstractHistory.prototype.replace = function replace (location, onComplete, onAbort) {
+    var this$1 = this;
+
+    this.transitionTo(location, function (route) {
+      this$1.stack = this$1.stack.slice(0, this$1.index).concat(route);
+      onComplete && onComplete(route);
+    }, onAbort);
+  };
+
+  AbstractHistory.prototype.go = function go (n) {
+    var this$1 = this;
+
+    var targetIndex = this.index + n;
+    if (targetIndex < 0 || targetIndex >= this.stack.length) {
+      return
+    }
+    var route = this.stack[targetIndex];
+    this.confirmTransition(route, function () {
+      this$1.index = targetIndex;
+      this$1.updateRoute(route);
+    });
+  };
+
+  AbstractHistory.prototype.getCurrentLocation = function getCurrentLocation () {
+    var current = this.stack[this.stack.length - 1];
+    return current ? current.fullPath : '/'
+  };
+
+  AbstractHistory.prototype.ensureURL = function ensureURL () {
+    // noop
+  };
+
+  return AbstractHistory;
+}(History));
+
+/*  */
+
+var VueRouter = function VueRouter (options) {
+  if ( options === void 0 ) options = {};
+
+  this.app = null;
+  this.apps = [];
+  this.options = options;
+  this.beforeHooks = [];
+  this.resolveHooks = [];
+  this.afterHooks = [];
+  this.matcher = createMatcher(options.routes || [], this);
+
+  var mode = options.mode || 'hash';
+  this.fallback = mode === 'history' && !supportsPushState && options.fallback !== false;
+  if (this.fallback) {
+    mode = 'hash';
+  }
+  if (!inBrowser) {
+    mode = 'abstract';
+  }
+  this.mode = mode;
+
+  switch (mode) {
+    case 'history':
+      this.history = new HTML5History(this, options.base);
+      break
+    case 'hash':
+      this.history = new HashHistory(this, options.base, this.fallback);
+      break
+    case 'abstract':
+      this.history = new AbstractHistory(this, options.base);
+      break
+    default:
+      {
+        assert(false, ("invalid mode: " + mode));
+      }
+  }
+};
+
+var prototypeAccessors = { currentRoute: { configurable: true } };
+
+VueRouter.prototype.match = function match (
+  raw,
+  current,
+  redirectedFrom
+) {
+  return this.matcher.match(raw, current, redirectedFrom)
+};
+
+prototypeAccessors.currentRoute.get = function () {
+  return this.history && this.history.current
+};
+
+VueRouter.prototype.init = function init (app /* Vue component instance */) {
+    var this$1 = this;
+
+  "development" !== 'production' && assert(
+    install.installed,
+    "not installed. Make sure to call `Vue.use(VueRouter)` " +
+    "before creating root instance."
+  );
+
+  this.apps.push(app);
+
+  // main app already initialized.
+  if (this.app) {
+    return
+  }
+
+  this.app = app;
+
+  var history = this.history;
+
+  if (history instanceof HTML5History) {
+    history.transitionTo(history.getCurrentLocation());
+  } else if (history instanceof HashHistory) {
+    var setupHashListener = function () {
+      history.setupListeners();
+    };
+    history.transitionTo(
+      history.getCurrentLocation(),
+      setupHashListener,
+      setupHashListener
+    );
+  }
+
+  history.listen(function (route) {
+    this$1.apps.forEach(function (app) {
+      app._route = route;
+    });
+  });
+};
+
+VueRouter.prototype.beforeEach = function beforeEach (fn) {
+  return registerHook(this.beforeHooks, fn)
+};
+
+VueRouter.prototype.beforeResolve = function beforeResolve (fn) {
+  return registerHook(this.resolveHooks, fn)
+};
+
+VueRouter.prototype.afterEach = function afterEach (fn) {
+  return registerHook(this.afterHooks, fn)
+};
+
+VueRouter.prototype.onReady = function onReady (cb, errorCb) {
+  this.history.onReady(cb, errorCb);
+};
+
+VueRouter.prototype.onError = function onError (errorCb) {
+  this.history.onError(errorCb);
+};
+
+VueRouter.prototype.push = function push (location, onComplete, onAbort) {
+  this.history.push(location, onComplete, onAbort);
+};
+
+VueRouter.prototype.replace = function replace (location, onComplete, onAbort) {
+  this.history.replace(location, onComplete, onAbort);
+};
+
+VueRouter.prototype.go = function go (n) {
+  this.history.go(n);
+};
+
+VueRouter.prototype.back = function back () {
+  this.go(-1);
+};
+
+VueRouter.prototype.forward = function forward () {
+  this.go(1);
+};
+
+VueRouter.prototype.getMatchedComponents = function getMatchedComponents (to) {
+  var route = to
+    ? to.matched
+      ? to
+      : this.resolve(to).route
+    : this.currentRoute;
+  if (!route) {
+    return []
+  }
+  return [].concat.apply([], route.matched.map(function (m) {
+    return Object.keys(m.components).map(function (key) {
+      return m.components[key]
+    })
+  }))
+};
+
+VueRouter.prototype.resolve = function resolve (
+  to,
+  current,
+  append
+) {
+  var location = normalizeLocation(
+    to,
+    current || this.history.current,
+    append,
+    this
+  );
+  var route = this.match(location, current);
+  var fullPath = route.redirectedFrom || route.fullPath;
+  var base = this.history.base;
+  var href = createHref(base, fullPath, this.mode);
+  return {
+    location: location,
+    route: route,
+    href: href,
+    // for backwards compat
+    normalizedTo: location,
+    resolved: route
+  }
+};
+
+VueRouter.prototype.addRoutes = function addRoutes (routes) {
+  this.matcher.addRoutes(routes);
+  if (this.history.current !== START) {
+    this.history.transitionTo(this.history.getCurrentLocation());
+  }
+};
+
+Object.defineProperties( VueRouter.prototype, prototypeAccessors );
+
+function registerHook (list, fn) {
+  list.push(fn);
+  return function () {
+    var i = list.indexOf(fn);
+    if (i > -1) { list.splice(i, 1); }
+  }
+}
+
+function createHref (base, fullPath, mode) {
+  var path = mode === 'hash' ? '#' + fullPath : fullPath;
+  return base ? cleanPath(base + '/' + path) : path
+}
+
+VueRouter.install = install;
+VueRouter.version = '3.0.1';
+
+if (inBrowser && window.Vue) {
+  window.Vue.use(VueRouter);
+}
+
+return VueRouter;
+
+})));
diff --git a/public/lib/vue.js b/public/lib/vue.js
index e69de29..ef171b9 100644
--- a/public/lib/vue.js
+++ b/public/lib/vue.js
@@ -0,0 +1,10947 @@
+/*!
+ * Vue.js v2.5.17
+ * (c) 2014-2018 Evan You
+ * Released under the MIT License.
+ */
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+	typeof define === 'function' && define.amd ? define(factory) :
+	(global.Vue = factory());
+}(this, (function () { 'use strict';
+
+/*  */
+
+var emptyObject = Object.freeze({});
+
+// these helpers produces better vm code in JS engines due to their
+// explicitness and function inlining
+function isUndef (v) {
+  return v === undefined || v === null
+}
+
+function isDef (v) {
+  return v !== undefined && v !== null
+}
+
+function isTrue (v) {
+  return v === true
+}
+
+function isFalse (v) {
+  return v === false
+}
+
+/**
+ * Check if value is primitive
+ */
+function isPrimitive (value) {
+  return (
+    typeof value === 'string' ||
+    typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
+    typeof value === 'boolean'
+  )
+}
+
+/**
+ * Quick object check - this is primarily used to tell
+ * Objects from primitive values when we know the value
+ * is a JSON-compliant type.
+ */
+function isObject (obj) {
+  return obj !== null && typeof obj === 'object'
+}
+
+/**
+ * Get the raw type string of a value e.g. [object Object]
+ */
+var _toString = Object.prototype.toString;
+
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
+/**
+ * Strict object type check. Only returns true
+ * for plain JavaScript objects.
+ */
+function isPlainObject (obj) {
+  return _toString.call(obj) === '[object Object]'
+}
+
+function isRegExp (v) {
+  return _toString.call(v) === '[object RegExp]'
+}
+
+/**
+ * Check if val is a valid array index.
+ */
+function isValidArrayIndex (val) {
+  var n = parseFloat(String(val));
+  return n >= 0 && Math.floor(n) === n && isFinite(val)
+}
+
+/**
+ * Convert a value to a string that is actually rendered.
+ */
+function toString (val) {
+  return val == null
+    ? ''
+    : typeof val === 'object'
+      ? JSON.stringify(val, null, 2)
+      : String(val)
+}
+
+/**
+ * Convert a input value to a number for persistence.
+ * If the conversion fails, return original string.
+ */
+function toNumber (val) {
+  var n = parseFloat(val);
+  return isNaN(n) ? val : n
+}
+
+/**
+ * Make a map and return a function for checking if a key
+ * is in that map.
+ */
+function makeMap (
+  str,
+  expectsLowerCase
+) {
+  var map = Object.create(null);
+  var list = str.split(',');
+  for (var i = 0; i < list.length; i++) {
+    map[list[i]] = true;
+  }
+  return expectsLowerCase
+    ? function (val) { return map[val.toLowerCase()]; }
+    : function (val) { return map[val]; }
+}
+
+/**
+ * Check if a tag is a built-in tag.
+ */
+var isBuiltInTag = makeMap('slot,component', true);
+
+/**
+ * Check if a attribute is a reserved attribute.
+ */
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
+
+/**
+ * Remove an item from an array
+ */
+function remove (arr, item) {
+  if (arr.length) {
+    var index = arr.indexOf(item);
+    if (index > -1) {
+      return arr.splice(index, 1)
+    }
+  }
+}
+
+/**
+ * Check whether the object has the property.
+ */
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+function hasOwn (obj, key) {
+  return hasOwnProperty.call(obj, key)
+}
+
+/**
+ * Create a cached version of a pure function.
+ */
+function cached (fn) {
+  var cache = Object.create(null);
+  return (function cachedFn (str) {
+    var hit = cache[str];
+    return hit || (cache[str] = fn(str))
+  })
+}
+
+/**
+ * Camelize a hyphen-delimited string.
+ */
+var camelizeRE = /-(\w)/g;
+var camelize = cached(function (str) {
+  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
+});
+
+/**
+ * Capitalize a string.
+ */
+var capitalize = cached(function (str) {
+  return str.charAt(0).toUpperCase() + str.slice(1)
+});
+
+/**
+ * Hyphenate a camelCase string.
+ */
+var hyphenateRE = /\B([A-Z])/g;
+var hyphenate = cached(function (str) {
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
+});
+
+/**
+ * Simple bind polyfill for environments that do not support it... e.g.
+ * PhantomJS 1.x. Technically we don't need this anymore since native bind is
+ * now more performant in most browsers, but removing it would be breaking for
+ * code that was able to run in PhantomJS 1.x, so this must be kept for
+ * backwards compatibility.
+ */
+
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
+  function boundFn (a) {
+    var l = arguments.length;
+    return l
+      ? l > 1
+        ? fn.apply(ctx, arguments)
+        : fn.call(ctx, a)
+      : fn.call(ctx)
+  }
+
+  boundFn._length = fn.length;
+  return boundFn
+}
+
+function nativeBind (fn, ctx) {
+  return fn.bind(ctx)
+}
+
+var bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind;
+
+/**
+ * Convert an Array-like object to a real Array.
+ */
+function toArray (list, start) {
+  start = start || 0;
+  var i = list.length - start;
+  var ret = new Array(i);
+  while (i--) {
+    ret[i] = list[i + start];
+  }
+  return ret
+}
+
+/**
+ * Mix properties into target object.
+ */
+function extend (to, _from) {
+  for (var key in _from) {
+    to[key] = _from[key];
+  }
+  return to
+}
+
+/**
+ * Merge an Array of Objects into a single Object.
+ */
+function toObject (arr) {
+  var res = {};
+  for (var i = 0; i < arr.length; i++) {
+    if (arr[i]) {
+      extend(res, arr[i]);
+    }
+  }
+  return res
+}
+
+/**
+ * Perform no operation.
+ * Stubbing args to make Flow happy without leaving useless transpiled code
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
+ */
+function noop (a, b, c) {}
+
+/**
+ * Always return false.
+ */
+var no = function (a, b, c) { return false; };
+
+/**
+ * Return same value
+ */
+var identity = function (_) { return _; };
+
+/**
+ * Generate a static keys string from compiler modules.
+ */
+function genStaticKeys (modules) {
+  return modules.reduce(function (keys, m) {
+    return keys.concat(m.staticKeys || [])
+  }, []).join(',')
+}
+
+/**
+ * Check if two values are loosely equal - that is,
+ * if they are plain objects, do they have the same shape?
+ */
+function looseEqual (a, b) {
+  if (a === b) { return true }
+  var isObjectA = isObject(a);
+  var isObjectB = isObject(b);
+  if (isObjectA && isObjectB) {
+    try {
+      var isArrayA = Array.isArray(a);
+      var isArrayB = Array.isArray(b);
+      if (isArrayA && isArrayB) {
+        return a.length === b.length && a.every(function (e, i) {
+          return looseEqual(e, b[i])
+        })
+      } else if (!isArrayA && !isArrayB) {
+        var keysA = Object.keys(a);
+        var keysB = Object.keys(b);
+        return keysA.length === keysB.length && keysA.every(function (key) {
+          return looseEqual(a[key], b[key])
+        })
+      } else {
+        /* istanbul ignore next */
+        return false
+      }
+    } catch (e) {
+      /* istanbul ignore next */
+      return false
+    }
+  } else if (!isObjectA && !isObjectB) {
+    return String(a) === String(b)
+  } else {
+    return false
+  }
+}
+
+function looseIndexOf (arr, val) {
+  for (var i = 0; i < arr.length; i++) {
+    if (looseEqual(arr[i], val)) { return i }
+  }
+  return -1
+}
+
+/**
+ * Ensure a function is called only once.
+ */
+function once (fn) {
+  var called = false;
+  return function () {
+    if (!called) {
+      called = true;
+      fn.apply(this, arguments);
+    }
+  }
+}
+
+var SSR_ATTR = 'data-server-rendered';
+
+var ASSET_TYPES = [
+  'component',
+  'directive',
+  'filter'
+];
+
+var LIFECYCLE_HOOKS = [
+  'beforeCreate',
+  'created',
+  'beforeMount',
+  'mounted',
+  'beforeUpdate',
+  'updated',
+  'beforeDestroy',
+  'destroyed',
+  'activated',
+  'deactivated',
+  'errorCaptured'
+];
+
+/*  */
+
+var config = ({
+  /**
+   * Option merge strategies (used in core/util/options)
+   */
+  // $flow-disable-line
+  optionMergeStrategies: Object.create(null),
+
+  /**
+   * Whether to suppress warnings.
+   */
+  silent: false,
+
+  /**
+   * Show production mode tip message on boot?
+   */
+  productionTip: "development" !== 'production',
+
+  /**
+   * Whether to enable devtools
+   */
+  devtools: "development" !== 'production',
+
+  /**
+   * Whether to record perf
+   */
+  performance: false,
+
+  /**
+   * Error handler for watcher errors
+   */
+  errorHandler: null,
+
+  /**
+   * Warn handler for watcher warns
+   */
+  warnHandler: null,
+
+  /**
+   * Ignore certain custom elements
+   */
+  ignoredElements: [],
+
+  /**
+   * Custom user key aliases for v-on
+   */
+  // $flow-disable-line
+  keyCodes: Object.create(null),
+
+  /**
+   * Check if a tag is reserved so that it cannot be registered as a
+   * component. This is platform-dependent and may be overwritten.
+   */
+  isReservedTag: no,
+
+  /**
+   * Check if an attribute is reserved so that it cannot be used as a component
+   * prop. This is platform-dependent and may be overwritten.
+   */
+  isReservedAttr: no,
+
+  /**
+   * Check if a tag is an unknown element.
+   * Platform-dependent.
+   */
+  isUnknownElement: no,
+
+  /**
+   * Get the namespace of an element
+   */
+  getTagNamespace: noop,
+
+  /**
+   * Parse the real tag name for the specific platform.
+   */
+  parsePlatformTagName: identity,
+
+  /**
+   * Check if an attribute must be bound using property, e.g. value
+   * Platform-dependent.
+   */
+  mustUseProp: no,
+
+  /**
+   * Exposed for legacy reasons
+   */
+  _lifecycleHooks: LIFECYCLE_HOOKS
+})
+
+/*  */
+
+/**
+ * Check if a string starts with $ or _
+ */
+function isReserved (str) {
+  var c = (str + '').charCodeAt(0);
+  return c === 0x24 || c === 0x5F
+}
+
+/**
+ * Define a property.
+ */
+function def (obj, key, val, enumerable) {
+  Object.defineProperty(obj, key, {
+    value: val,
+    enumerable: !!enumerable,
+    writable: true,
+    configurable: true
+  });
+}
+
+/**
+ * Parse simple path.
+ */
+var bailRE = /[^\w.$]/;
+function parsePath (path) {
+  if (bailRE.test(path)) {
+    return
+  }
+  var segments = path.split('.');
+  return function (obj) {
+    for (var i = 0; i < segments.length; i++) {
+      if (!obj) { return }
+      obj = obj[segments[i]];
+    }
+    return obj
+  }
+}
+
+/*  */
+
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+var supportsPassive = false;
+if (inBrowser) {
+  try {
+    var opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get: function get () {
+        /* istanbul ignore next */
+        supportsPassive = true;
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+var _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = (function () {
+    function Set () {
+      this.set = Object.create(null);
+    }
+    Set.prototype.has = function has (key) {
+      return this.set[key] === true
+    };
+    Set.prototype.add = function add (key) {
+      this.set[key] = true;
+    };
+    Set.prototype.clear = function clear () {
+      this.set = Object.create(null);
+    };
+
+    return Set;
+  }());
+}
+
+/*  */
+
+var warn = noop;
+var tip = noop;
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
+
+{
+  var hasConsole = typeof console !== 'undefined';
+  var classifyRE = /(?:^|[-_])(\w)/g;
+  var classify = function (str) { return str
+    .replace(classifyRE, function (c) { return c.toUpperCase(); })
+    .replace(/[-_]/g, ''); };
+
+  warn = function (msg, vm) {
+    var trace = vm ? generateComponentTrace(vm) : '';
+
+    if (config.warnHandler) {
+      config.warnHandler.call(null, msg, vm, trace);
+    } else if (hasConsole && (!config.silent)) {
+      console.error(("[Vue warn]: " + msg + trace));
+    }
+  };
+
+  tip = function (msg, vm) {
+    if (hasConsole && (!config.silent)) {
+      console.warn("[Vue tip]: " + msg + (
+        vm ? generateComponentTrace(vm) : ''
+      ));
+    }
+  };
+
+  formatComponentName = function (vm, includeFile) {
+    if (vm.$root === vm) {
+      return '<Root>'
+    }
+    var options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm || {};
+    var name = options.name || options._componentTag;
+    var file = options.__file;
+    if (!name && file) {
+      var match = file.match(/([^/\\]+)\.vue$/);
+      name = match && match[1];
+    }
+
+    return (
+      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
+      (file && includeFile !== false ? (" at " + file) : '')
+    )
+  };
+
+  var repeat = function (str, n) {
+    var res = '';
+    while (n) {
+      if (n % 2 === 1) { res += str; }
+      if (n > 1) { str += str; }
+      n >>= 1;
+    }
+    return res
+  };
+
+  generateComponentTrace = function (vm) {
+    if (vm._isVue && vm.$parent) {
+      var tree = [];
+      var currentRecursiveSequence = 0;
+      while (vm) {
+        if (tree.length > 0) {
+          var last = tree[tree.length - 1];
+          if (last.constructor === vm.constructor) {
+            currentRecursiveSequence++;
+            vm = vm.$parent;
+            continue
+          } else if (currentRecursiveSequence > 0) {
+            tree[tree.length - 1] = [last, currentRecursiveSequence];
+            currentRecursiveSequence = 0;
+          }
+        }
+        tree.push(vm);
+        vm = vm.$parent;
+      }
+      return '\n\nfound in\n\n' + tree
+        .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
+            ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
+            : formatComponentName(vm))); })
+        .join('\n')
+    } else {
+      return ("\n\n(found in " + (formatComponentName(vm)) + ")")
+    }
+  };
+}
+
+/*  */
+
+
+var uid = 0;
+
+/**
+ * A dep is an observable that can have multiple
+ * directives subscribing to it.
+ */
+var Dep = function Dep () {
+  this.id = uid++;
+  this.subs = [];
+};
+
+Dep.prototype.addSub = function addSub (sub) {
+  this.subs.push(sub);
+};
+
+Dep.prototype.removeSub = function removeSub (sub) {
+  remove(this.subs, sub);
+};
+
+Dep.prototype.depend = function depend () {
+  if (Dep.target) {
+    Dep.target.addDep(this);
+  }
+};
+
+Dep.prototype.notify = function notify () {
+  // stabilize the subscriber list first
+  var subs = this.subs.slice();
+  for (var i = 0, l = subs.length; i < l; i++) {
+    subs[i].update();
+  }
+};
+
+// the current target watcher being evaluated.
+// this is globally unique because there could be only one
+// watcher being evaluated at any time.
+Dep.target = null;
+var targetStack = [];
+
+function pushTarget (_target) {
+  if (Dep.target) { targetStack.push(Dep.target); }
+  Dep.target = _target;
+}
+
+function popTarget () {
+  Dep.target = targetStack.pop();
+}
+
+/*  */
+
+var VNode = function VNode (
+  tag,
+  data,
+  children,
+  text,
+  elm,
+  context,
+  componentOptions,
+  asyncFactory
+) {
+  this.tag = tag;
+  this.data = data;
+  this.children = children;
+  this.text = text;
+  this.elm = elm;
+  this.ns = undefined;
+  this.context = context;
+  this.fnContext = undefined;
+  this.fnOptions = undefined;
+  this.fnScopeId = undefined;
+  this.key = data && data.key;
+  this.componentOptions = componentOptions;
+  this.componentInstance = undefined;
+  this.parent = undefined;
+  this.raw = false;
+  this.isStatic = false;
+  this.isRootInsert = true;
+  this.isComment = false;
+  this.isCloned = false;
+  this.isOnce = false;
+  this.asyncFactory = asyncFactory;
+  this.asyncMeta = undefined;
+  this.isAsyncPlaceholder = false;
+};
+
+var prototypeAccessors = { child: { configurable: true } };
+
+// DEPRECATED: alias for componentInstance for backwards compat.
+/* istanbul ignore next */
+prototypeAccessors.child.get = function () {
+  return this.componentInstance
+};
+
+Object.defineProperties( VNode.prototype, prototypeAccessors );
+
+var createEmptyVNode = function (text) {
+  if ( text === void 0 ) text = '';
+
+  var node = new VNode();
+  node.text = text;
+  node.isComment = true;
+  return node
+};
+
+function createTextVNode (val) {
+  return new VNode(undefined, undefined, undefined, String(val))
+}
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+function cloneVNode (vnode) {
+  var cloned = new VNode(
+    vnode.tag,
+    vnode.data,
+    vnode.children,
+    vnode.text,
+    vnode.elm,
+    vnode.context,
+    vnode.componentOptions,
+    vnode.asyncFactory
+  );
+  cloned.ns = vnode.ns;
+  cloned.isStatic = vnode.isStatic;
+  cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
+  cloned.fnContext = vnode.fnContext;
+  cloned.fnOptions = vnode.fnOptions;
+  cloned.fnScopeId = vnode.fnScopeId;
+  cloned.isCloned = true;
+  return cloned
+}
+
+/*
+ * not type checking this file because flow doesn't play well with
+ * dynamically accessing methods on Array prototype
+ */
+
+var arrayProto = Array.prototype;
+var arrayMethods = Object.create(arrayProto);
+
+var methodsToPatch = [
+  'push',
+  'pop',
+  'shift',
+  'unshift',
+  'splice',
+  'sort',
+  'reverse'
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
+  // cache original method
+  var original = arrayProto[method];
+  def(arrayMethods, method, function mutator () {
+    var args = [], len = arguments.length;
+    while ( len-- ) args[ len ] = arguments[ len ];
+
+    var result = original.apply(this, args);
+    var ob = this.__ob__;
+    var inserted;
+    switch (method) {
+      case 'push':
+      case 'unshift':
+        inserted = args;
+        break
+      case 'splice':
+        inserted = args.slice(2);
+        break
+    }
+    if (inserted) { ob.observeArray(inserted); }
+    // notify change
+    ob.dep.notify();
+    return result
+  });
+});
+
+/*  */
+
+var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
+
+/**
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
+ */
+var shouldObserve = true;
+
+function toggleObserving (value) {
+  shouldObserve = value;
+}
+
+/**
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
+ * object's property keys into getter/setters that
+ * collect dependencies and dispatch updates.
+ */
+var Observer = function Observer (value) {
+  this.value = value;
+  this.dep = new Dep();
+  this.vmCount = 0;
+  def(value, '__ob__', this);
+  if (Array.isArray(value)) {
+    var augment = hasProto
+      ? protoAugment
+      : copyAugment;
+    augment(value, arrayMethods, arrayKeys);
+    this.observeArray(value);
+  } else {
+    this.walk(value);
+  }
+};
+
+/**
+ * Walk through each property and convert them into
+ * getter/setters. This method should only be called when
+ * value type is Object.
+ */
+Observer.prototype.walk = function walk (obj) {
+  var keys = Object.keys(obj);
+  for (var i = 0; i < keys.length; i++) {
+    defineReactive(obj, keys[i]);
+  }
+};
+
+/**
+ * Observe a list of Array items.
+ */
+Observer.prototype.observeArray = function observeArray (items) {
+  for (var i = 0, l = items.length; i < l; i++) {
+    observe(items[i]);
+  }
+};
+
+// helpers
+
+/**
+ * Augment an target Object or Array by intercepting
+ * the prototype chain using __proto__
+ */
+function protoAugment (target, src, keys) {
+  /* eslint-disable no-proto */
+  target.__proto__ = src;
+  /* eslint-enable no-proto */
+}
+
+/**
+ * Augment an target Object or Array by defining
+ * hidden properties.
+ */
+/* istanbul ignore next */
+function copyAugment (target, src, keys) {
+  for (var i = 0, l = keys.length; i < l; i++) {
+    var key = keys[i];
+    def(target, key, src[key]);
+  }
+}
+
+/**
+ * Attempt to create an observer instance for a value,
+ * returns the new observer if successfully observed,
+ * or the existing observer if the value already has one.
+ */
+function observe (value, asRootData) {
+  if (!isObject(value) || value instanceof VNode) {
+    return
+  }
+  var ob;
+  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
+    ob = value.__ob__;
+  } else if (
+    shouldObserve &&
+    !isServerRendering() &&
+    (Array.isArray(value) || isPlainObject(value)) &&
+    Object.isExtensible(value) &&
+    !value._isVue
+  ) {
+    ob = new Observer(value);
+  }
+  if (asRootData && ob) {
+    ob.vmCount++;
+  }
+  return ob
+}
+
+/**
+ * Define a reactive property on an Object.
+ */
+function defineReactive (
+  obj,
+  key,
+  val,
+  customSetter,
+  shallow
+) {
+  var dep = new Dep();
+
+  var property = Object.getOwnPropertyDescriptor(obj, key);
+  if (property && property.configurable === false) {
+    return
+  }
+
+  // cater for pre-defined getter/setters
+  var getter = property && property.get;
+  if (!getter && arguments.length === 2) {
+    val = obj[key];
+  }
+  var setter = property && property.set;
+
+  var childOb = !shallow && observe(val);
+  Object.defineProperty(obj, key, {
+    enumerable: true,
+    configurable: true,
+    get: function reactiveGetter () {
+      var value = getter ? getter.call(obj) : val;
+      if (Dep.target) {
+        dep.depend();
+        if (childOb) {
+          childOb.dep.depend();
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
+        }
+      }
+      return value
+    },
+    set: function reactiveSetter (newVal) {
+      var value = getter ? getter.call(obj) : val;
+      /* eslint-disable no-self-compare */
+      if (newVal === value || (newVal !== newVal && value !== value)) {
+        return
+      }
+      /* eslint-enable no-self-compare */
+      if ("development" !== 'production' && customSetter) {
+        customSetter();
+      }
+      if (setter) {
+        setter.call(obj, newVal);
+      } else {
+        val = newVal;
+      }
+      childOb = !shallow && observe(newVal);
+      dep.notify();
+    }
+  });
+}
+
+/**
+ * Set a property on an object. Adds the new property and
+ * triggers change notification if the property doesn't
+ * already exist.
+ */
+function set (target, key, val) {
+  if ("development" !== 'production' &&
+    (isUndef(target) || isPrimitive(target))
+  ) {
+    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
+  }
+  if (Array.isArray(target) && isValidArrayIndex(key)) {
+    target.length = Math.max(target.length, key);
+    target.splice(key, 1, val);
+    return val
+  }
+  if (key in target && !(key in Object.prototype)) {
+    target[key] = val;
+    return val
+  }
+  var ob = (target).__ob__;
+  if (target._isVue || (ob && ob.vmCount)) {
+    "development" !== 'production' && warn(
+      'Avoid adding reactive properties to a Vue instance or its root $data ' +
+      'at runtime - declare it upfront in the data option.'
+    );
+    return val
+  }
+  if (!ob) {
+    target[key] = val;
+    return val
+  }
+  defineReactive(ob.value, key, val);
+  ob.dep.notify();
+  return val
+}
+
+/**
+ * Delete a property and trigger change if necessary.
+ */
+function del (target, key) {
+  if ("development" !== 'production' &&
+    (isUndef(target) || isPrimitive(target))
+  ) {
+    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
+  }
+  if (Array.isArray(target) && isValidArrayIndex(key)) {
+    target.splice(key, 1);
+    return
+  }
+  var ob = (target).__ob__;
+  if (target._isVue || (ob && ob.vmCount)) {
+    "development" !== 'production' && warn(
+      'Avoid deleting properties on a Vue instance or its root $data ' +
+      '- just set it to null.'
+    );
+    return
+  }
+  if (!hasOwn(target, key)) {
+    return
+  }
+  delete target[key];
+  if (!ob) {
+    return
+  }
+  ob.dep.notify();
+}
+
+/**
+ * Collect dependencies on array elements when the array is touched, since
+ * we cannot intercept array element access like property getters.
+ */
+function dependArray (value) {
+  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
+    e = value[i];
+    e && e.__ob__ && e.__ob__.dep.depend();
+    if (Array.isArray(e)) {
+      dependArray(e);
+    }
+  }
+}
+
+/*  */
+
+/**
+ * Option overwriting strategies are functions that handle
+ * how to merge a parent option value and a child option
+ * value into the final value.
+ */
+var strats = config.optionMergeStrategies;
+
+/**
+ * Options with restrictions
+ */
+{
+  strats.el = strats.propsData = function (parent, child, vm, key) {
+    if (!vm) {
+      warn(
+        "option \"" + key + "\" can only be used during instance " +
+        'creation with the `new` keyword.'
+      );
+    }
+    return defaultStrat(parent, child)
+  };
+}
+
+/**
+ * Helper that recursively merges two data objects together.
+ */
+function mergeData (to, from) {
+  if (!from) { return to }
+  var key, toVal, fromVal;
+  var keys = Object.keys(from);
+  for (var i = 0; i < keys.length; i++) {
+    key = keys[i];
+    toVal = to[key];
+    fromVal = from[key];
+    if (!hasOwn(to, key)) {
+      set(to, key, fromVal);
+    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+      mergeData(toVal, fromVal);
+    }
+  }
+  return to
+}
+
+/**
+ * Data
+ */
+function mergeDataOrFn (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    // in a Vue.extend merge, both should be functions
+    if (!childVal) {
+      return parentVal
+    }
+    if (!parentVal) {
+      return childVal
+    }
+    // when parentVal & childVal are both present,
+    // we need to return a function that returns the
+    // merged result of both functions... no need to
+    // check if parentVal is a function here because
+    // it has to be a function to pass previous merges.
+    return function mergedDataFn () {
+      return mergeData(
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
+      )
+    }
+  } else {
+    return function mergedInstanceDataFn () {
+      // instance merge
+      var instanceData = typeof childVal === 'function'
+        ? childVal.call(vm, vm)
+        : childVal;
+      var defaultData = typeof parentVal === 'function'
+        ? parentVal.call(vm, vm)
+        : parentVal;
+      if (instanceData) {
+        return mergeData(instanceData, defaultData)
+      } else {
+        return defaultData
+      }
+    }
+  }
+}
+
+strats.data = function (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    if (childVal && typeof childVal !== 'function') {
+      "development" !== 'production' && warn(
+        'The "data" option should be a function ' +
+        'that returns a per-instance value in component ' +
+        'definitions.',
+        vm
+      );
+
+      return parentVal
+    }
+    return mergeDataOrFn(parentVal, childVal)
+  }
+
+  return mergeDataOrFn(parentVal, childVal, vm)
+};
+
+/**
+ * Hooks and props are merged as arrays.
+ */
+function mergeHook (
+  parentVal,
+  childVal
+) {
+  return childVal
+    ? parentVal
+      ? parentVal.concat(childVal)
+      : Array.isArray(childVal)
+        ? childVal
+        : [childVal]
+    : parentVal
+}
+
+LIFECYCLE_HOOKS.forEach(function (hook) {
+  strats[hook] = mergeHook;
+});
+
+/**
+ * Assets
+ *
+ * When a vm is present (instance creation), we need to do
+ * a three-way merge between constructor options, instance
+ * options and parent options.
+ */
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  var res = Object.create(parentVal || null);
+  if (childVal) {
+    "development" !== 'production' && assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
+}
+
+ASSET_TYPES.forEach(function (type) {
+  strats[type + 's'] = mergeAssets;
+});
+
+/**
+ * Watchers.
+ *
+ * Watchers hashes should not overwrite one
+ * another, so we merge them as arrays.
+ */
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  // work around Firefox's Object.prototype.watch...
+  if (parentVal === nativeWatch) { parentVal = undefined; }
+  if (childVal === nativeWatch) { childVal = undefined; }
+  /* istanbul ignore if */
+  if (!childVal) { return Object.create(parentVal || null) }
+  {
+    assertObjectType(key, childVal, vm);
+  }
+  if (!parentVal) { return childVal }
+  var ret = {};
+  extend(ret, parentVal);
+  for (var key$1 in childVal) {
+    var parent = ret[key$1];
+    var child = childVal[key$1];
+    if (parent && !Array.isArray(parent)) {
+      parent = [parent];
+    }
+    ret[key$1] = parent
+      ? parent.concat(child)
+      : Array.isArray(child) ? child : [child];
+  }
+  return ret
+};
+
+/**
+ * Other object hashes.
+ */
+strats.props =
+strats.methods =
+strats.inject =
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && "development" !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
+  if (!parentVal) { return childVal }
+  var ret = Object.create(null);
+  extend(ret, parentVal);
+  if (childVal) { extend(ret, childVal); }
+  return ret
+};
+strats.provide = mergeDataOrFn;
+
+/**
+ * Default strategy.
+ */
+var defaultStrat = function (parentVal, childVal) {
+  return childVal === undefined
+    ? parentVal
+    : childVal
+};
+
+/**
+ * Validate component names
+ */
+function checkComponents (options) {
+  for (var key in options.components) {
+    validateComponentName(key);
+  }
+}
+
+function validateComponentName (name) {
+  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+    warn(
+      'Invalid component name: "' + name + '". Component names ' +
+      'can only contain alphanumeric characters and the hyphen, ' +
+      'and must start with a letter.'
+    );
+  }
+  if (isBuiltInTag(name) || config.isReservedTag(name)) {
+    warn(
+      'Do not use built-in or reserved HTML elements as component ' +
+      'id: ' + name
+    );
+  }
+}
+
+/**
+ * Ensure all props option syntax are normalized into the
+ * Object-based format.
+ */
+function normalizeProps (options, vm) {
+  var props = options.props;
+  if (!props) { return }
+  var res = {};
+  var i, val, name;
+  if (Array.isArray(props)) {
+    i = props.length;
+    while (i--) {
+      val = props[i];
+      if (typeof val === 'string') {
+        name = camelize(val);
+        res[name] = { type: null };
+      } else {
+        warn('props must be strings when using array syntax.');
+      }
+    }
+  } else if (isPlainObject(props)) {
+    for (var key in props) {
+      val = props[key];
+      name = camelize(key);
+      res[name] = isPlainObject(val)
+        ? val
+        : { type: val };
+    }
+  } else {
+    warn(
+      "Invalid value for option \"props\": expected an Array or an Object, " +
+      "but got " + (toRawType(props)) + ".",
+      vm
+    );
+  }
+  options.props = res;
+}
+
+/**
+ * Normalize all injections into Object-based format
+ */
+function normalizeInject (options, vm) {
+  var inject = options.inject;
+  if (!inject) { return }
+  var normalized = options.inject = {};
+  if (Array.isArray(inject)) {
+    for (var i = 0; i < inject.length; i++) {
+      normalized[inject[i]] = { from: inject[i] };
+    }
+  } else if (isPlainObject(inject)) {
+    for (var key in inject) {
+      var val = inject[key];
+      normalized[key] = isPlainObject(val)
+        ? extend({ from: key }, val)
+        : { from: val };
+    }
+  } else {
+    warn(
+      "Invalid value for option \"inject\": expected an Array or an Object, " +
+      "but got " + (toRawType(inject)) + ".",
+      vm
+    );
+  }
+}
+
+/**
+ * Normalize raw function directives into object format.
+ */
+function normalizeDirectives (options) {
+  var dirs = options.directives;
+  if (dirs) {
+    for (var key in dirs) {
+      var def = dirs[key];
+      if (typeof def === 'function') {
+        dirs[key] = { bind: def, update: def };
+      }
+    }
+  }
+}
+
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn(
+      "Invalid value for option \"" + name + "\": expected an Object, " +
+      "but got " + (toRawType(value)) + ".",
+      vm
+    );
+  }
+}
+
+/**
+ * Merge two option objects into a new one.
+ * Core utility used in both instantiation and inheritance.
+ */
+function mergeOptions (
+  parent,
+  child,
+  vm
+) {
+  {
+    checkComponents(child);
+  }
+
+  if (typeof child === 'function') {
+    child = child.options;
+  }
+
+  normalizeProps(child, vm);
+  normalizeInject(child, vm);
+  normalizeDirectives(child);
+  var extendsFrom = child.extends;
+  if (extendsFrom) {
+    parent = mergeOptions(parent, extendsFrom, vm);
+  }
+  if (child.mixins) {
+    for (var i = 0, l = child.mixins.length; i < l; i++) {
+      parent = mergeOptions(parent, child.mixins[i], vm);
+    }
+  }
+  var options = {};
+  var key;
+  for (key in parent) {
+    mergeField(key);
+  }
+  for (key in child) {
+    if (!hasOwn(parent, key)) {
+      mergeField(key);
+    }
+  }
+  function mergeField (key) {
+    var strat = strats[key] || defaultStrat;
+    options[key] = strat(parent[key], child[key], vm, key);
+  }
+  return options
+}
+
+/**
+ * Resolve an asset.
+ * This function is used because child instances need access
+ * to assets defined in its ancestor chain.
+ */
+function resolveAsset (
+  options,
+  type,
+  id,
+  warnMissing
+) {
+  /* istanbul ignore if */
+  if (typeof id !== 'string') {
+    return
+  }
+  var assets = options[type];
+  // check local registration variations first
+  if (hasOwn(assets, id)) { return assets[id] }
+  var camelizedId = camelize(id);
+  if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
+  var PascalCaseId = capitalize(camelizedId);
+  if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
+  // fallback to prototype chain
+  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
+  if ("development" !== 'production' && warnMissing && !res) {
+    warn(
+      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
+      options
+    );
+  }
+  return res
+}
+
+/*  */
+
+function validateProp (
+  key,
+  propOptions,
+  propsData,
+  vm
+) {
+  var prop = propOptions[key];
+  var absent = !hasOwn(propsData, key);
+  var value = propsData[key];
+  // boolean casting
+  var booleanIndex = getTypeIndex(Boolean, prop.type);
+  if (booleanIndex > -1) {
+    if (absent && !hasOwn(prop, 'default')) {
+      value = false;
+    } else if (value === '' || value === hyphenate(key)) {
+      // only cast empty string / same name to boolean if
+      // boolean has higher priority
+      var stringIndex = getTypeIndex(String, prop.type);
+      if (stringIndex < 0 || booleanIndex < stringIndex) {
+        value = true;
+      }
+    }
+  }
+  // check default value
+  if (value === undefined) {
+    value = getPropDefaultValue(vm, prop, key);
+    // since the default value is a fresh copy,
+    // make sure to observe it.
+    var prevShouldObserve = shouldObserve;
+    toggleObserving(true);
+    observe(value);
+    toggleObserving(prevShouldObserve);
+  }
+  {
+    assertProp(prop, key, value, vm, absent);
+  }
+  return value
+}
+
+/**
+ * Get the default value of a prop.
+ */
+function getPropDefaultValue (vm, prop, key) {
+  // no default, return undefined
+  if (!hasOwn(prop, 'default')) {
+    return undefined
+  }
+  var def = prop.default;
+  // warn against non-factory defaults for Object & Array
+  if ("development" !== 'production' && isObject(def)) {
+    warn(
+      'Invalid default value for prop "' + key + '": ' +
+      'Props with type Object/Array must use a factory function ' +
+      'to return the default value.',
+      vm
+    );
+  }
+  // the raw prop value was also undefined from previous render,
+  // return previous default value to avoid unnecessary watcher trigger
+  if (vm && vm.$options.propsData &&
+    vm.$options.propsData[key] === undefined &&
+    vm._props[key] !== undefined
+  ) {
+    return vm._props[key]
+  }
+  // call factory function for non-Function types
+  // a value is Function if its prototype is function even across different execution context
+  return typeof def === 'function' && getType(prop.type) !== 'Function'
+    ? def.call(vm)
+    : def
+}
+
+/**
+ * Assert whether a prop is valid.
+ */
+function assertProp (
+  prop,
+  name,
+  value,
+  vm,
+  absent
+) {
+  if (prop.required && absent) {
+    warn(
+      'Missing required prop: "' + name + '"',
+      vm
+    );
+    return
+  }
+  if (value == null && !prop.required) {
+    return
+  }
+  var type = prop.type;
+  var valid = !type || type === true;
+  var expectedTypes = [];
+  if (type) {
+    if (!Array.isArray(type)) {
+      type = [type];
+    }
+    for (var i = 0; i < type.length && !valid; i++) {
+      var assertedType = assertType(value, type[i]);
+      expectedTypes.push(assertedType.expectedType || '');
+      valid = assertedType.valid;
+    }
+  }
+  if (!valid) {
+    warn(
+      "Invalid prop: type check failed for prop \"" + name + "\"." +
+      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
+      ", got " + (toRawType(value)) + ".",
+      vm
+    );
+    return
+  }
+  var validator = prop.validator;
+  if (validator) {
+    if (!validator(value)) {
+      warn(
+        'Invalid prop: custom validator check failed for prop "' + name + '".',
+        vm
+      );
+    }
+  }
+}
+
+var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
+
+function assertType (value, type) {
+  var valid;
+  var expectedType = getType(type);
+  if (simpleCheckRE.test(expectedType)) {
+    var t = typeof value;
+    valid = t === expectedType.toLowerCase();
+    // for primitive wrapper objects
+    if (!valid && t === 'object') {
+      valid = value instanceof type;
+    }
+  } else if (expectedType === 'Object') {
+    valid = isPlainObject(value);
+  } else if (expectedType === 'Array') {
+    valid = Array.isArray(value);
+  } else {
+    valid = value instanceof type;
+  }
+  return {
+    valid: valid,
+    expectedType: expectedType
+  }
+}
+
+/**
+ * Use function string name to check built-in types,
+ * because a simple equality check will fail when running
+ * across different vms / iframes.
+ */
+function getType (fn) {
+  var match = fn && fn.toString().match(/^\s*function (\w+)/);
+  return match ? match[1] : ''
+}
+
+function isSameType (a, b) {
+  return getType(a) === getType(b)
+}
+
+function getTypeIndex (type, expectedTypes) {
+  if (!Array.isArray(expectedTypes)) {
+    return isSameType(expectedTypes, type) ? 0 : -1
+  }
+  for (var i = 0, len = expectedTypes.length; i < len; i++) {
+    if (isSameType(expectedTypes[i], type)) {
+      return i
+    }
+  }
+  return -1
+}
+
+/*  */
+
+function handleError (err, vm, info) {
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
+    }
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
+    }
+  }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
+}
+
+/*  */
+/* globals MessageChannel */
+
+var callbacks = [];
+var pending = false;
+
+function flushCallbacks () {
+  pending = false;
+  var copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (var i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Here we have async deferring wrappers using both microtasks and (macro) tasks.
+// In < 2.4 we used microtasks everywhere, but there are some scenarios where
+// microtasks have too high a priority and fire in between supposedly
+// sequential events (e.g. #4521, #6690) or even between bubbling of the same
+// event (#6566). However, using (macro) tasks everywhere also has subtle problems
+// when state is changed right before repaint (e.g. #6813, out-in transitions).
+// Here we use microtask by default, but expose a way to force (macro) task when
+// needed (e.g. in event handlers attached by v-on).
+var microTimerFunc;
+var macroTimerFunc;
+var useMacroTask = false;
+
+// Determine (macro) task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  macroTimerFunc = function () {
+    setImmediate(flushCallbacks);
+  };
+} else if (typeof MessageChannel !== 'undefined' && (
+  isNative(MessageChannel) ||
+  // PhantomJS
+  MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+  var channel = new MessageChannel();
+  var port = channel.port2;
+  channel.port1.onmessage = flushCallbacks;
+  macroTimerFunc = function () {
+    port.postMessage(1);
+  };
+} else {
+  /* istanbul ignore next */
+  macroTimerFunc = function () {
+    setTimeout(flushCallbacks, 0);
+  };
+}
+
+// Determine microtask defer implementation.
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  var p = Promise.resolve();
+  microTimerFunc = function () {
+    p.then(flushCallbacks);
+    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) { setTimeout(noop); }
+  };
+} else {
+  // fallback to macro
+  microTimerFunc = macroTimerFunc;
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a (macro) task instead of a microtask.
+ */
+function withMacroTask (fn) {
+  return fn._withTask || (fn._withTask = function () {
+    useMacroTask = true;
+    var res = fn.apply(null, arguments);
+    useMacroTask = false;
+    return res
+  })
+}
+
+function nextTick (cb, ctx) {
+  var _resolve;
+  callbacks.push(function () {
+    if (cb) {
+      try {
+        cb.call(ctx);
+      } catch (e) {
+        handleError(e, ctx, 'nextTick');
+      }
+    } else if (_resolve) {
+      _resolve(ctx);
+    }
+  });
+  if (!pending) {
+    pending = true;
+    if (useMacroTask) {
+      macroTimerFunc();
+    } else {
+      microTimerFunc();
+    }
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(function (resolve) {
+      _resolve = resolve;
+    })
+  }
+}
+
+/*  */
+
+var mark;
+var measure;
+
+{
+  var perf = inBrowser && window.performance;
+  /* istanbul ignore if */
+  if (
+    perf &&
+    perf.mark &&
+    perf.measure &&
+    perf.clearMarks &&
+    perf.clearMeasures
+  ) {
+    mark = function (tag) { return perf.mark(tag); };
+    measure = function (name, startTag, endTag) {
+      perf.measure(name, startTag, endTag);
+      perf.clearMarks(startTag);
+      perf.clearMarks(endTag);
+      perf.clearMeasures(name);
+    };
+  }
+}
+
+/* not type checking this file because flow doesn't play well with Proxy */
+
+var initProxy;
+
+{
+  var allowedGlobals = makeMap(
+    'Infinity,undefined,NaN,isFinite,isNaN,' +
+    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
+    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
+    'require' // for Webpack/Browserify
+  );
+
+  var warnNonPresent = function (target, key) {
+    warn(
+      "Property or method \"" + key + "\" is not defined on the instance but " +
+      'referenced during render. Make sure that this property is reactive, ' +
+      'either in the data option, or for class-based components, by ' +
+      'initializing the property. ' +
+      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
+      target
+    );
+  };
+
+  var hasProxy =
+    typeof Proxy !== 'undefined' && isNative(Proxy);
+
+  if (hasProxy) {
+    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
+    config.keyCodes = new Proxy(config.keyCodes, {
+      set: function set (target, key, value) {
+        if (isBuiltInModifier(key)) {
+          warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
+          return false
+        } else {
+          target[key] = value;
+          return true
+        }
+      }
+    });
+  }
+
+  var hasHandler = {
+    has: function has (target, key) {
+      var has = key in target;
+      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
+      if (!has && !isAllowed) {
+        warnNonPresent(target, key);
+      }
+      return has || !isAllowed
+    }
+  };
+
+  var getHandler = {
+    get: function get (target, key) {
+      if (typeof key === 'string' && !(key in target)) {
+        warnNonPresent(target, key);
+      }
+      return target[key]
+    }
+  };
+
+  initProxy = function initProxy (vm) {
+    if (hasProxy) {
+      // determine which proxy handler to use
+      var options = vm.$options;
+      var handlers = options.render && options.render._withStripped
+        ? getHandler
+        : hasHandler;
+      vm._renderProxy = new Proxy(vm, handlers);
+    } else {
+      vm._renderProxy = vm;
+    }
+  };
+}
+
+/*  */
+
+var seenObjects = new _Set();
+
+/**
+ * Recursively traverse an object to evoke all converted
+ * getters, so that every nested property inside the object
+ * is collected as a "deep" dependency.
+ */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  var i, keys;
+  var isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
+    return
+  }
+  if (val.__ob__) {
+    var depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) { _traverse(val[i], seen); }
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) { _traverse(val[keys[i]], seen); }
+  }
+}
+
+/*  */
+
+var normalizeEvent = cached(function (name) {
+  var passive = name.charAt(0) === '&';
+  name = passive ? name.slice(1) : name;
+  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
+  name = once$$1 ? name.slice(1) : name;
+  var capture = name.charAt(0) === '!';
+  name = capture ? name.slice(1) : name;
+  return {
+    name: name,
+    once: once$$1,
+    capture: capture,
+    passive: passive
+  }
+});
+
+function createFnInvoker (fns) {
+  function invoker () {
+    var arguments$1 = arguments;
+
+    var fns = invoker.fns;
+    if (Array.isArray(fns)) {
+      var cloned = fns.slice();
+      for (var i = 0; i < cloned.length; i++) {
+        cloned[i].apply(null, arguments$1);
+      }
+    } else {
+      // return handler return value for single handlers
+      return fns.apply(null, arguments)
+    }
+  }
+  invoker.fns = fns;
+  return invoker
+}
+
+function updateListeners (
+  on,
+  oldOn,
+  add,
+  remove$$1,
+  vm
+) {
+  var name, def, cur, old, event;
+  for (name in on) {
+    def = cur = on[name];
+    old = oldOn[name];
+    event = normalizeEvent(name);
+    /* istanbul ignore if */
+    if (isUndef(cur)) {
+      "development" !== 'production' && warn(
+        "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
+        vm
+      );
+    } else if (isUndef(old)) {
+      if (isUndef(cur.fns)) {
+        cur = on[name] = createFnInvoker(cur);
+      }
+      add(event.name, cur, event.once, event.capture, event.passive, event.params);
+    } else if (cur !== old) {
+      old.fns = cur;
+      on[name] = old;
+    }
+  }
+  for (name in oldOn) {
+    if (isUndef(on[name])) {
+      event = normalizeEvent(name);
+      remove$$1(event.name, oldOn[name], event.capture);
+    }
+  }
+}
+
+/*  */
+
+function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
+  var invoker;
+  var oldHook = def[hookKey];
+
+  function wrappedHook () {
+    hook.apply(this, arguments);
+    // important: remove merged hook to ensure it's called only once
+    // and prevent memory leak
+    remove(invoker.fns, wrappedHook);
+  }
+
+  if (isUndef(oldHook)) {
+    // no existing hook
+    invoker = createFnInvoker([wrappedHook]);
+  } else {
+    /* istanbul ignore if */
+    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
+      // already a merged invoker
+      invoker = oldHook;
+      invoker.fns.push(wrappedHook);
+    } else {
+      // existing plain hook
+      invoker = createFnInvoker([oldHook, wrappedHook]);
+    }
+  }
+
+  invoker.merged = true;
+  def[hookKey] = invoker;
+}
+
+/*  */
+
+function extractPropsFromVNodeData (
+  data,
+  Ctor,
+  tag
+) {
+  // we are only extracting raw values here.
+  // validation and default values are handled in the child
+  // component itself.
+  var propOptions = Ctor.options.props;
+  if (isUndef(propOptions)) {
+    return
+  }
+  var res = {};
+  var attrs = data.attrs;
+  var props = data.props;
+  if (isDef(attrs) || isDef(props)) {
+    for (var key in propOptions) {
+      var altKey = hyphenate(key);
+      {
+        var keyInLowerCase = key.toLowerCase();
+        if (
+          key !== keyInLowerCase &&
+          attrs && hasOwn(attrs, keyInLowerCase)
+        ) {
+          tip(
+            "Prop \"" + keyInLowerCase + "\" is passed to component " +
+            (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
+            " \"" + key + "\". " +
+            "Note that HTML attributes are case-insensitive and camelCased " +
+            "props need to use their kebab-case equivalents when using in-DOM " +
+            "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
+          );
+        }
+      }
+      checkProp(res, props, key, altKey, true) ||
+      checkProp(res, attrs, key, altKey, false);
+    }
+  }
+  return res
+}
+
+function checkProp (
+  res,
+  hash,
+  key,
+  altKey,
+  preserve
+) {
+  if (isDef(hash)) {
+    if (hasOwn(hash, key)) {
+      res[key] = hash[key];
+      if (!preserve) {
+        delete hash[key];
+      }
+      return true
+    } else if (hasOwn(hash, altKey)) {
+      res[key] = hash[altKey];
+      if (!preserve) {
+        delete hash[altKey];
+      }
+      return true
+    }
+  }
+  return false
+}
+
+/*  */
+
+// The template compiler attempts to minimize the need for normalization by
+// statically analyzing the template at compile time.
+//
+// For plain HTML markup, normalization can be completely skipped because the
+// generated render function is guaranteed to return Array<VNode>. There are
+// two cases where extra normalization is needed:
+
+// 1. When the children contains components - because a functional component
+// may return an Array instead of a single root. In this case, just a simple
+// normalization is needed - if any child is an Array, we flatten the whole
+// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
+// because functional components already normalize their own children.
+function simpleNormalizeChildren (children) {
+  for (var i = 0; i < children.length; i++) {
+    if (Array.isArray(children[i])) {
+      return Array.prototype.concat.apply([], children)
+    }
+  }
+  return children
+}
+
+// 2. When the children contains constructs that always generated nested Arrays,
+// e.g. <template>, <slot>, v-for, or when the children is provided by user
+// with hand-written render functions / JSX. In such cases a full normalization
+// is needed to cater to all possible types of children values.
+function normalizeChildren (children) {
+  return isPrimitive(children)
+    ? [createTextVNode(children)]
+    : Array.isArray(children)
+      ? normalizeArrayChildren(children)
+      : undefined
+}
+
+function isTextNode (node) {
+  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
+}
+
+function normalizeArrayChildren (children, nestedIndex) {
+  var res = [];
+  var i, c, lastIndex, last;
+  for (i = 0; i < children.length; i++) {
+    c = children[i];
+    if (isUndef(c) || typeof c === 'boolean') { continue }
+    lastIndex = res.length - 1;
+    last = res[lastIndex];
+    //  nested
+    if (Array.isArray(c)) {
+      if (c.length > 0) {
+        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+        // merge adjacent text nodes
+        if (isTextNode(c[0]) && isTextNode(last)) {
+          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+          c.shift();
+        }
+        res.push.apply(res, c);
+      }
+    } else if (isPrimitive(c)) {
+      if (isTextNode(last)) {
+        // merge adjacent text nodes
+        // this is necessary for SSR hydration because text nodes are
+        // essentially merged when rendered to HTML strings
+        res[lastIndex] = createTextVNode(last.text + c);
+      } else if (c !== '') {
+        // convert primitive to vnode
+        res.push(createTextVNode(c));
+      }
+    } else {
+      if (isTextNode(c) && isTextNode(last)) {
+        // merge adjacent text nodes
+        res[lastIndex] = createTextVNode(last.text + c.text);
+      } else {
+        // default key for nested array children (likely generated by v-for)
+        if (isTrue(children._isVList) &&
+          isDef(c.tag) &&
+          isUndef(c.key) &&
+          isDef(nestedIndex)) {
+          c.key = "__vlist" + nestedIndex + "_" + i + "__";
+        }
+        res.push(c);
+      }
+    }
+  }
+  return res
+}
+
+/*  */
+
+function ensureCtor (comp, base) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
+    comp = comp.default;
+  }
+  return isObject(comp)
+    ? base.extend(comp)
+    : comp
+}
+
+function createAsyncPlaceholder (
+  factory,
+  data,
+  context,
+  children,
+  tag
+) {
+  var node = createEmptyVNode();
+  node.asyncFactory = factory;
+  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
+  return node
+}
+
+function resolveAsyncComponent (
+  factory,
+  baseCtor,
+  context
+) {
+  if (isTrue(factory.error) && isDef(factory.errorComp)) {
+    return factory.errorComp
+  }
+
+  if (isDef(factory.resolved)) {
+    return factory.resolved
+  }
+
+  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+    return factory.loadingComp
+  }
+
+  if (isDef(factory.contexts)) {
+    // already pending
+    factory.contexts.push(context);
+  } else {
+    var contexts = factory.contexts = [context];
+    var sync = true;
+
+    var forceRender = function () {
+      for (var i = 0, l = contexts.length; i < l; i++) {
+        contexts[i].$forceUpdate();
+      }
+    };
+
+    var resolve = once(function (res) {
+      // cache resolved
+      factory.resolved = ensureCtor(res, baseCtor);
+      // invoke callbacks only if this is not a synchronous resolve
+      // (async resolves are shimmed as synchronous during SSR)
+      if (!sync) {
+        forceRender();
+      }
+    });
+
+    var reject = once(function (reason) {
+      "development" !== 'production' && warn(
+        "Failed to resolve async component: " + (String(factory)) +
+        (reason ? ("\nReason: " + reason) : '')
+      );
+      if (isDef(factory.errorComp)) {
+        factory.error = true;
+        forceRender();
+      }
+    });
+
+    var res = factory(resolve, reject);
+
+    if (isObject(res)) {
+      if (typeof res.then === 'function') {
+        // () => Promise
+        if (isUndef(factory.resolved)) {
+          res.then(resolve, reject);
+        }
+      } else if (isDef(res.component) && typeof res.component.then === 'function') {
+        res.component.then(resolve, reject);
+
+        if (isDef(res.error)) {
+          factory.errorComp = ensureCtor(res.error, baseCtor);
+        }
+
+        if (isDef(res.loading)) {
+          factory.loadingComp = ensureCtor(res.loading, baseCtor);
+          if (res.delay === 0) {
+            factory.loading = true;
+          } else {
+            setTimeout(function () {
+              if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                factory.loading = true;
+                forceRender();
+              }
+            }, res.delay || 200);
+          }
+        }
+
+        if (isDef(res.timeout)) {
+          setTimeout(function () {
+            if (isUndef(factory.resolved)) {
+              reject(
+                "timeout (" + (res.timeout) + "ms)"
+              );
+            }
+          }, res.timeout);
+        }
+      }
+    }
+
+    sync = false;
+    // return in case resolved synchronously
+    return factory.loading
+      ? factory.loadingComp
+      : factory.resolved
+  }
+}
+
+/*  */
+
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
+
+/*  */
+
+function getFirstComponentChild (children) {
+  if (Array.isArray(children)) {
+    for (var i = 0; i < children.length; i++) {
+      var c = children[i];
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
+        return c
+      }
+    }
+  }
+}
+
+/*  */
+
+/*  */
+
+function initEvents (vm) {
+  vm._events = Object.create(null);
+  vm._hasHookEvent = false;
+  // init parent attached events
+  var listeners = vm.$options._parentListeners;
+  if (listeners) {
+    updateComponentListeners(vm, listeners);
+  }
+}
+
+var target;
+
+function add (event, fn, once) {
+  if (once) {
+    target.$once(event, fn);
+  } else {
+    target.$on(event, fn);
+  }
+}
+
+function remove$1 (event, fn) {
+  target.$off(event, fn);
+}
+
+function updateComponentListeners (
+  vm,
+  listeners,
+  oldListeners
+) {
+  target = vm;
+  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
+}
+
+function eventsMixin (Vue) {
+  var hookRE = /^hook:/;
+  Vue.prototype.$on = function (event, fn) {
+    var this$1 = this;
+
+    var vm = this;
+    if (Array.isArray(event)) {
+      for (var i = 0, l = event.length; i < l; i++) {
+        this$1.$on(event[i], fn);
+      }
+    } else {
+      (vm._events[event] || (vm._events[event] = [])).push(fn);
+      // optimize hook:event cost by using a boolean flag marked at registration
+      // instead of a hash lookup
+      if (hookRE.test(event)) {
+        vm._hasHookEvent = true;
+      }
+    }
+    return vm
+  };
+
+  Vue.prototype.$once = function (event, fn) {
+    var vm = this;
+    function on () {
+      vm.$off(event, on);
+      fn.apply(vm, arguments);
+    }
+    on.fn = fn;
+    vm.$on(event, on);
+    return vm
+  };
+
+  Vue.prototype.$off = function (event, fn) {
+    var this$1 = this;
+
+    var vm = this;
+    // all
+    if (!arguments.length) {
+      vm._events = Object.create(null);
+      return vm
+    }
+    // array of events
+    if (Array.isArray(event)) {
+      for (var i = 0, l = event.length; i < l; i++) {
+        this$1.$off(event[i], fn);
+      }
+      return vm
+    }
+    // specific event
+    var cbs = vm._events[event];
+    if (!cbs) {
+      return vm
+    }
+    if (!fn) {
+      vm._events[event] = null;
+      return vm
+    }
+    if (fn) {
+      // specific handler
+      var cb;
+      var i$1 = cbs.length;
+      while (i$1--) {
+        cb = cbs[i$1];
+        if (cb === fn || cb.fn === fn) {
+          cbs.splice(i$1, 1);
+          break
+        }
+      }
+    }
+    return vm
+  };
+
+  Vue.prototype.$emit = function (event) {
+    var vm = this;
+    {
+      var lowerCaseEvent = event.toLowerCase();
+      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
+        tip(
+          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
+          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
+          "Note that HTML attributes are case-insensitive and you cannot use " +
+          "v-on to listen to camelCase events when using in-DOM templates. " +
+          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
+        );
+      }
+    }
+    var cbs = vm._events[event];
+    if (cbs) {
+      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
+      var args = toArray(arguments, 1);
+      for (var i = 0, l = cbs.length; i < l; i++) {
+        try {
+          cbs[i].apply(vm, args);
+        } catch (e) {
+          handleError(e, vm, ("event handler for \"" + event + "\""));
+        }
+      }
+    }
+    return vm
+  };
+}
+
+/*  */
+
+
+
+/**
+ * Runtime helper for resolving raw children VNodes into a slot object.
+ */
+function resolveSlots (
+  children,
+  context
+) {
+  var slots = {};
+  if (!children) {
+    return slots
+  }
+  for (var i = 0, l = children.length; i < l; i++) {
+    var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
+    // named slots should only be respected if the vnode was rendered in the
+    // same context.
+    if ((child.context === context || child.fnContext === context) &&
+      data && data.slot != null
+    ) {
+      var name = data.slot;
+      var slot = (slots[name] || (slots[name] = []));
+      if (child.tag === 'template') {
+        slot.push.apply(slot, child.children || []);
+      } else {
+        slot.push(child);
+      }
+    } else {
+      (slots.default || (slots.default = [])).push(child);
+    }
+  }
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
+  }
+  return slots
+}
+
+function isWhitespace (node) {
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
+}
+
+function resolveScopedSlots (
+  fns, // see flow/vnode
+  res
+) {
+  res = res || {};
+  for (var i = 0; i < fns.length; i++) {
+    if (Array.isArray(fns[i])) {
+      resolveScopedSlots(fns[i], res);
+    } else {
+      res[fns[i].key] = fns[i].fn;
+    }
+  }
+  return res
+}
+
+/*  */
+
+var activeInstance = null;
+var isUpdatingChildComponent = false;
+
+function initLifecycle (vm) {
+  var options = vm.$options;
+
+  // locate first non-abstract parent
+  var parent = options.parent;
+  if (parent && !options.abstract) {
+    while (parent.$options.abstract && parent.$parent) {
+      parent = parent.$parent;
+    }
+    parent.$children.push(vm);
+  }
+
+  vm.$parent = parent;
+  vm.$root = parent ? parent.$root : vm;
+
+  vm.$children = [];
+  vm.$refs = {};
+
+  vm._watcher = null;
+  vm._inactive = null;
+  vm._directInactive = false;
+  vm._isMounted = false;
+  vm._isDestroyed = false;
+  vm._isBeingDestroyed = false;
+}
+
+function lifecycleMixin (Vue) {
+  Vue.prototype._update = function (vnode, hydrating) {
+    var vm = this;
+    if (vm._isMounted) {
+      callHook(vm, 'beforeUpdate');
+    }
+    var prevEl = vm.$el;
+    var prevVnode = vm._vnode;
+    var prevActiveInstance = activeInstance;
+    activeInstance = vm;
+    vm._vnode = vnode;
+    // Vue.prototype.__patch__ is injected in entry points
+    // based on the rendering backend used.
+    if (!prevVnode) {
+      // initial render
+      vm.$el = vm.__patch__(
+        vm.$el, vnode, hydrating, false /* removeOnly */,
+        vm.$options._parentElm,
+        vm.$options._refElm
+      );
+      // no need for the ref nodes after initial patch
+      // this prevents keeping a detached DOM tree in memory (#5851)
+      vm.$options._parentElm = vm.$options._refElm = null;
+    } else {
+      // updates
+      vm.$el = vm.__patch__(prevVnode, vnode);
+    }
+    activeInstance = prevActiveInstance;
+    // update __vue__ reference
+    if (prevEl) {
+      prevEl.__vue__ = null;
+    }
+    if (vm.$el) {
+      vm.$el.__vue__ = vm;
+    }
+    // if parent is an HOC, update its $el as well
+    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
+      vm.$parent.$el = vm.$el;
+    }
+    // updated hook is called by the scheduler to ensure that children are
+    // updated in a parent's updated hook.
+  };
+
+  Vue.prototype.$forceUpdate = function () {
+    var vm = this;
+    if (vm._watcher) {
+      vm._watcher.update();
+    }
+  };
+
+  Vue.prototype.$destroy = function () {
+    var vm = this;
+    if (vm._isBeingDestroyed) {
+      return
+    }
+    callHook(vm, 'beforeDestroy');
+    vm._isBeingDestroyed = true;
+    // remove self from parent
+    var parent = vm.$parent;
+    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
+      remove(parent.$children, vm);
+    }
+    // teardown watchers
+    if (vm._watcher) {
+      vm._watcher.teardown();
+    }
+    var i = vm._watchers.length;
+    while (i--) {
+      vm._watchers[i].teardown();
+    }
+    // remove reference from data ob
+    // frozen object may not have observer.
+    if (vm._data.__ob__) {
+      vm._data.__ob__.vmCount--;
+    }
+    // call the last hook...
+    vm._isDestroyed = true;
+    // invoke destroy hooks on current rendered tree
+    vm.__patch__(vm._vnode, null);
+    // fire destroyed hook
+    callHook(vm, 'destroyed');
+    // turn off all instance listeners.
+    vm.$off();
+    // remove __vue__ reference
+    if (vm.$el) {
+      vm.$el.__vue__ = null;
+    }
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
+    }
+  };
+}
+
+function mountComponent (
+  vm,
+  el,
+  hydrating
+) {
+  vm.$el = el;
+  if (!vm.$options.render) {
+    vm.$options.render = createEmptyVNode;
+    {
+      /* istanbul ignore if */
+      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
+        vm.$options.el || el) {
+        warn(
+          'You are using the runtime-only build of Vue where the template ' +
+          'compiler is not available. Either pre-compile the templates into ' +
+          'render functions, or use the compiler-included build.',
+          vm
+        );
+      } else {
+        warn(
+          'Failed to mount component: template or render function not defined.',
+          vm
+        );
+      }
+    }
+  }
+  callHook(vm, 'beforeMount');
+
+  var updateComponent;
+  /* istanbul ignore if */
+  if ("development" !== 'production' && config.performance && mark) {
+    updateComponent = function () {
+      var name = vm._name;
+      var id = vm._uid;
+      var startTag = "vue-perf-start:" + id;
+      var endTag = "vue-perf-end:" + id;
+
+      mark(startTag);
+      var vnode = vm._render();
+      mark(endTag);
+      measure(("vue " + name + " render"), startTag, endTag);
+
+      mark(startTag);
+      vm._update(vnode, hydrating);
+      mark(endTag);
+      measure(("vue " + name + " patch"), startTag, endTag);
+    };
+  } else {
+    updateComponent = function () {
+      vm._update(vm._render(), hydrating);
+    };
+  }
+
+  // we set this to vm._watcher inside the watcher's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
+  hydrating = false;
+
+  // manually mounted instance, call mounted on self
+  // mounted is called for render-created child components in its inserted hook
+  if (vm.$vnode == null) {
+    vm._isMounted = true;
+    callHook(vm, 'mounted');
+  }
+  return vm
+}
+
+function updateChildComponent (
+  vm,
+  propsData,
+  listeners,
+  parentVnode,
+  renderChildren
+) {
+  {
+    isUpdatingChildComponent = true;
+  }
+
+  // determine whether component has slot children
+  // we need to do this before overwriting $options._renderChildren
+  var hasChildren = !!(
+    renderChildren ||               // has new static slots
+    vm.$options._renderChildren ||  // has old static slots
+    parentVnode.data.scopedSlots || // has new scoped slots
+    vm.$scopedSlots !== emptyObject // has old scoped slots
+  );
+
+  vm.$options._parentVnode = parentVnode;
+  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+
+  if (vm._vnode) { // update child tree's parent
+    vm._vnode.parent = parentVnode;
+  }
+  vm.$options._renderChildren = renderChildren;
+
+  // update $attrs and $listeners hash
+  // these are also reactive so they may trigger child update if the child
+  // used them during render
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
+  vm.$listeners = listeners || emptyObject;
+
+  // update props
+  if (propsData && vm.$options.props) {
+    toggleObserving(false);
+    var props = vm._props;
+    var propKeys = vm.$options._propKeys || [];
+    for (var i = 0; i < propKeys.length; i++) {
+      var key = propKeys[i];
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
+    }
+    toggleObserving(true);
+    // keep a copy of raw propsData
+    vm.$options.propsData = propsData;
+  }
+
+  // update listeners
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
+
+  // resolve slots + force update if has children
+  if (hasChildren) {
+    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+    vm.$forceUpdate();
+  }
+
+  {
+    isUpdatingChildComponent = false;
+  }
+}
+
+function isInInactiveTree (vm) {
+  while (vm && (vm = vm.$parent)) {
+    if (vm._inactive) { return true }
+  }
+  return false
+}
+
+function activateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = false;
+    if (isInInactiveTree(vm)) {
+      return
+    }
+  } else if (vm._directInactive) {
+    return
+  }
+  if (vm._inactive || vm._inactive === null) {
+    vm._inactive = false;
+    for (var i = 0; i < vm.$children.length; i++) {
+      activateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'activated');
+  }
+}
+
+function deactivateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = true;
+    if (isInInactiveTree(vm)) {
+      return
+    }
+  }
+  if (!vm._inactive) {
+    vm._inactive = true;
+    for (var i = 0; i < vm.$children.length; i++) {
+      deactivateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'deactivated');
+  }
+}
+
+function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
+  var handlers = vm.$options[hook];
+  if (handlers) {
+    for (var i = 0, j = handlers.length; i < j; i++) {
+      try {
+        handlers[i].call(vm);
+      } catch (e) {
+        handleError(e, vm, (hook + " hook"));
+      }
+    }
+  }
+  if (vm._hasHookEvent) {
+    vm.$emit('hook:' + hook);
+  }
+  popTarget();
+}
+
+/*  */
+
+
+var MAX_UPDATE_COUNT = 100;
+
+var queue = [];
+var activatedChildren = [];
+var has = {};
+var circular = {};
+var waiting = false;
+var flushing = false;
+var index = 0;
+
+/**
+ * Reset the scheduler's state.
+ */
+function resetSchedulerState () {
+  index = queue.length = activatedChildren.length = 0;
+  has = {};
+  {
+    circular = {};
+  }
+  waiting = flushing = false;
+}
+
+/**
+ * Flush both queues and run the watchers.
+ */
+function flushSchedulerQueue () {
+  flushing = true;
+  var watcher, id;
+
+  // Sort queue before flush.
+  // This ensures that:
+  // 1. Components are updated from parent to child. (because parent is always
+  //    created before the child)
+  // 2. A component's user watchers are run before its render watcher (because
+  //    user watchers are created before the render watcher)
+  // 3. If a component is destroyed during a parent component's watcher run,
+  //    its watchers can be skipped.
+  queue.sort(function (a, b) { return a.id - b.id; });
+
+  // do not cache length because more watchers might be pushed
+  // as we run existing watchers
+  for (index = 0; index < queue.length; index++) {
+    watcher = queue[index];
+    id = watcher.id;
+    has[id] = null;
+    watcher.run();
+    // in dev build, check and stop circular updates.
+    if ("development" !== 'production' && has[id] != null) {
+      circular[id] = (circular[id] || 0) + 1;
+      if (circular[id] > MAX_UPDATE_COUNT) {
+        warn(
+          'You may have an infinite update loop ' + (
+            watcher.user
+              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
+              : "in a component render function."
+          ),
+          watcher.vm
+        );
+        break
+      }
+    }
+  }
+
+  // keep copies of post queues before resetting state
+  var activatedQueue = activatedChildren.slice();
+  var updatedQueue = queue.slice();
+
+  resetSchedulerState();
+
+  // call component updated and activated hooks
+  callActivatedHooks(activatedQueue);
+  callUpdatedHooks(updatedQueue);
+
+  // devtool hook
+  /* istanbul ignore if */
+  if (devtools && config.devtools) {
+    devtools.emit('flush');
+  }
+}
+
+function callUpdatedHooks (queue) {
+  var i = queue.length;
+  while (i--) {
+    var watcher = queue[i];
+    var vm = watcher.vm;
+    if (vm._watcher === watcher && vm._isMounted) {
+      callHook(vm, 'updated');
+    }
+  }
+}
+
+/**
+ * Queue a kept-alive component that was activated during patch.
+ * The queue will be processed after the entire tree has been patched.
+ */
+function queueActivatedComponent (vm) {
+  // setting _inactive to false here so that a render function can
+  // rely on checking whether it's in an inactive tree (e.g. router-view)
+  vm._inactive = false;
+  activatedChildren.push(vm);
+}
+
+function callActivatedHooks (queue) {
+  for (var i = 0; i < queue.length; i++) {
+    queue[i]._inactive = true;
+    activateChildComponent(queue[i], true /* true */);
+  }
+}
+
+/**
+ * Push a watcher into the watcher queue.
+ * Jobs with duplicate IDs will be skipped unless it's
+ * pushed when the queue is being flushed.
+ */
+function queueWatcher (watcher) {
+  var id = watcher.id;
+  if (has[id] == null) {
+    has[id] = true;
+    if (!flushing) {
+      queue.push(watcher);
+    } else {
+      // if already flushing, splice the watcher based on its id
+      // if already past its id, it will be run next immediately.
+      var i = queue.length - 1;
+      while (i > index && queue[i].id > watcher.id) {
+        i--;
+      }
+      queue.splice(i + 1, 0, watcher);
+    }
+    // queue the flush
+    if (!waiting) {
+      waiting = true;
+      nextTick(flushSchedulerQueue);
+    }
+  }
+}
+
+/*  */
+
+var uid$1 = 0;
+
+/**
+ * A watcher parses an expression, collects dependencies,
+ * and fires callback when the expression value changes.
+ * This is used for both the $watch() api and directives.
+ */
+var Watcher = function Watcher (
+  vm,
+  expOrFn,
+  cb,
+  options,
+  isRenderWatcher
+) {
+  this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
+  vm._watchers.push(this);
+  // options
+  if (options) {
+    this.deep = !!options.deep;
+    this.user = !!options.user;
+    this.lazy = !!options.lazy;
+    this.sync = !!options.sync;
+  } else {
+    this.deep = this.user = this.lazy = this.sync = false;
+  }
+  this.cb = cb;
+  this.id = ++uid$1; // uid for batching
+  this.active = true;
+  this.dirty = this.lazy; // for lazy watchers
+  this.deps = [];
+  this.newDeps = [];
+  this.depIds = new _Set();
+  this.newDepIds = new _Set();
+  this.expression = expOrFn.toString();
+  // parse expression for getter
+  if (typeof expOrFn === 'function') {
+    this.getter = expOrFn;
+  } else {
+    this.getter = parsePath(expOrFn);
+    if (!this.getter) {
+      this.getter = function () {};
+      "development" !== 'production' && warn(
+        "Failed watching path: \"" + expOrFn + "\" " +
+        'Watcher only accepts simple dot-delimited paths. ' +
+        'For full control, use a function instead.',
+        vm
+      );
+    }
+  }
+  this.value = this.lazy
+    ? undefined
+    : this.get();
+};
+
+/**
+ * Evaluate the getter, and re-collect dependencies.
+ */
+Watcher.prototype.get = function get () {
+  pushTarget(this);
+  var value;
+  var vm = this.vm;
+  try {
+    value = this.getter.call(vm, vm);
+  } catch (e) {
+    if (this.user) {
+      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+    } else {
+      throw e
+    }
+  } finally {
+    // "touch" every property so they are all tracked as
+    // dependencies for deep watching
+    if (this.deep) {
+      traverse(value);
+    }
+    popTarget();
+    this.cleanupDeps();
+  }
+  return value
+};
+
+/**
+ * Add a dependency to this directive.
+ */
+Watcher.prototype.addDep = function addDep (dep) {
+  var id = dep.id;
+  if (!this.newDepIds.has(id)) {
+    this.newDepIds.add(id);
+    this.newDeps.push(dep);
+    if (!this.depIds.has(id)) {
+      dep.addSub(this);
+    }
+  }
+};
+
+/**
+ * Clean up for dependency collection.
+ */
+Watcher.prototype.cleanupDeps = function cleanupDeps () {
+    var this$1 = this;
+
+  var i = this.deps.length;
+  while (i--) {
+    var dep = this$1.deps[i];
+    if (!this$1.newDepIds.has(dep.id)) {
+      dep.removeSub(this$1);
+    }
+  }
+  var tmp = this.depIds;
+  this.depIds = this.newDepIds;
+  this.newDepIds = tmp;
+  this.newDepIds.clear();
+  tmp = this.deps;
+  this.deps = this.newDeps;
+  this.newDeps = tmp;
+  this.newDeps.length = 0;
+};
+
+/**
+ * Subscriber interface.
+ * Will be called when a dependency changes.
+ */
+Watcher.prototype.update = function update () {
+  /* istanbul ignore else */
+  if (this.lazy) {
+    this.dirty = true;
+  } else if (this.sync) {
+    this.run();
+  } else {
+    queueWatcher(this);
+  }
+};
+
+/**
+ * Scheduler job interface.
+ * Will be called by the scheduler.
+ */
+Watcher.prototype.run = function run () {
+  if (this.active) {
+    var value = this.get();
+    if (
+      value !== this.value ||
+      // Deep watchers and watchers on Object/Arrays should fire even
+      // when the value is the same, because the value may
+      // have mutated.
+      isObject(value) ||
+      this.deep
+    ) {
+      // set new value
+      var oldValue = this.value;
+      this.value = value;
+      if (this.user) {
+        try {
+          this.cb.call(this.vm, value, oldValue);
+        } catch (e) {
+          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+        }
+      } else {
+        this.cb.call(this.vm, value, oldValue);
+      }
+    }
+  }
+};
+
+/**
+ * Evaluate the value of the watcher.
+ * This only gets called for lazy watchers.
+ */
+Watcher.prototype.evaluate = function evaluate () {
+  this.value = this.get();
+  this.dirty = false;
+};
+
+/**
+ * Depend on all deps collected by this watcher.
+ */
+Watcher.prototype.depend = function depend () {
+    var this$1 = this;
+
+  var i = this.deps.length;
+  while (i--) {
+    this$1.deps[i].depend();
+  }
+};
+
+/**
+ * Remove self from all dependencies' subscriber list.
+ */
+Watcher.prototype.teardown = function teardown () {
+    var this$1 = this;
+
+  if (this.active) {
+    // remove self from vm's watcher list
+    // this is a somewhat expensive operation so we skip it
+    // if the vm is being destroyed.
+    if (!this.vm._isBeingDestroyed) {
+      remove(this.vm._watchers, this);
+    }
+    var i = this.deps.length;
+    while (i--) {
+      this$1.deps[i].removeSub(this$1);
+    }
+    this.active = false;
+  }
+};
+
+/*  */
+
+var sharedPropertyDefinition = {
+  enumerable: true,
+  configurable: true,
+  get: noop,
+  set: noop
+};
+
+function proxy (target, sourceKey, key) {
+  sharedPropertyDefinition.get = function proxyGetter () {
+    return this[sourceKey][key]
+  };
+  sharedPropertyDefinition.set = function proxySetter (val) {
+    this[sourceKey][key] = val;
+  };
+  Object.defineProperty(target, key, sharedPropertyDefinition);
+}
+
+function initState (vm) {
+  vm._watchers = [];
+  var opts = vm.$options;
+  if (opts.props) { initProps(vm, opts.props); }
+  if (opts.methods) { initMethods(vm, opts.methods); }
+  if (opts.data) {
+    initData(vm);
+  } else {
+    observe(vm._data = {}, true /* asRootData */);
+  }
+  if (opts.computed) { initComputed(vm, opts.computed); }
+  if (opts.watch && opts.watch !== nativeWatch) {
+    initWatch(vm, opts.watch);
+  }
+}
+
+function initProps (vm, propsOptions) {
+  var propsData = vm.$options.propsData || {};
+  var props = vm._props = {};
+  // cache prop keys so that future props updates can iterate using Array
+  // instead of dynamic object key enumeration.
+  var keys = vm.$options._propKeys = [];
+  var isRoot = !vm.$parent;
+  // root instance props should be converted
+  if (!isRoot) {
+    toggleObserving(false);
+  }
+  var loop = function ( key ) {
+    keys.push(key);
+    var value = validateProp(key, propsOptions, propsData, vm);
+    /* istanbul ignore else */
+    {
+      var hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
+        warn(
+          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
+          vm
+        );
+      }
+      defineReactive(props, key, value, function () {
+        if (vm.$parent && !isUpdatingChildComponent) {
+          warn(
+            "Avoid mutating a prop directly since the value will be " +
+            "overwritten whenever the parent component re-renders. " +
+            "Instead, use a data or computed property based on the prop's " +
+            "value. Prop being mutated: \"" + key + "\"",
+            vm
+          );
+        }
+      });
+    }
+    // static props are already proxied on the component's prototype
+    // during Vue.extend(). We only need to proxy props defined at
+    // instantiation here.
+    if (!(key in vm)) {
+      proxy(vm, "_props", key);
+    }
+  };
+
+  for (var key in propsOptions) loop( key );
+  toggleObserving(true);
+}
+
+function initData (vm) {
+  var data = vm.$options.data;
+  data = vm._data = typeof data === 'function'
+    ? getData(data, vm)
+    : data || {};
+  if (!isPlainObject(data)) {
+    data = {};
+    "development" !== 'production' && warn(
+      'data functions should return an object:\n' +
+      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
+      vm
+    );
+  }
+  // proxy data on instance
+  var keys = Object.keys(data);
+  var props = vm.$options.props;
+  var methods = vm.$options.methods;
+  var i = keys.length;
+  while (i--) {
+    var key = keys[i];
+    {
+      if (methods && hasOwn(methods, key)) {
+        warn(
+          ("Method \"" + key + "\" has already been defined as a data property."),
+          vm
+        );
+      }
+    }
+    if (props && hasOwn(props, key)) {
+      "development" !== 'production' && warn(
+        "The data property \"" + key + "\" is already declared as a prop. " +
+        "Use prop default value instead.",
+        vm
+      );
+    } else if (!isReserved(key)) {
+      proxy(vm, "_data", key);
+    }
+  }
+  // observe data
+  observe(data, true /* asRootData */);
+}
+
+function getData (data, vm) {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget();
+  try {
+    return data.call(vm, vm)
+  } catch (e) {
+    handleError(e, vm, "data()");
+    return {}
+  } finally {
+    popTarget();
+  }
+}
+
+var computedWatcherOptions = { lazy: true };
+
+function initComputed (vm, computed) {
+  // $flow-disable-line
+  var watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  var isSSR = isServerRendering();
+
+  for (var key in computed) {
+    var userDef = computed[key];
+    var getter = typeof userDef === 'function' ? userDef : userDef.get;
+    if ("development" !== 'production' && getter == null) {
+      warn(
+        ("Getter is missing for computed property \"" + key + "\"."),
+        vm
+      );
+    }
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
+      );
+    }
+
+    // component-defined computed properties are already defined on the
+    // component prototype. We only need to define computed properties defined
+    // at instantiation here.
+    if (!(key in vm)) {
+      defineComputed(vm, key, userDef);
+    } else {
+      if (key in vm.$data) {
+        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
+      } else if (vm.$options.props && key in vm.$options.props) {
+        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+      }
+    }
+  }
+}
+
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  var shouldCache = !isServerRendering();
+  if (typeof userDef === 'function') {
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : userDef;
+    sharedPropertyDefinition.set = noop;
+  } else {
+    sharedPropertyDefinition.get = userDef.get
+      ? shouldCache && userDef.cache !== false
+        ? createComputedGetter(key)
+        : userDef.get
+      : noop;
+    sharedPropertyDefinition.set = userDef.set
+      ? userDef.set
+      : noop;
+  }
+  if ("development" !== 'production' &&
+      sharedPropertyDefinition.set === noop) {
+    sharedPropertyDefinition.set = function () {
+      warn(
+        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
+        this
+      );
+    };
+  }
+  Object.defineProperty(target, key, sharedPropertyDefinition);
+}
+
+function createComputedGetter (key) {
+  return function computedGetter () {
+    var watcher = this._computedWatchers && this._computedWatchers[key];
+    if (watcher) {
+      if (watcher.dirty) {
+        watcher.evaluate();
+      }
+      if (Dep.target) {
+        watcher.depend();
+      }
+      return watcher.value
+    }
+  }
+}
+
+function initMethods (vm, methods) {
+  var props = vm.$options.props;
+  for (var key in methods) {
+    {
+      if (methods[key] == null) {
+        warn(
+          "Method \"" + key + "\" has an undefined value in the component definition. " +
+          "Did you reference the function correctly?",
+          vm
+        );
+      }
+      if (props && hasOwn(props, key)) {
+        warn(
+          ("Method \"" + key + "\" has already been defined as a prop."),
+          vm
+        );
+      }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+          "Avoid defining component methods that start with _ or $."
+        );
+      }
+    }
+    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
+  }
+}
+
+function initWatch (vm, watch) {
+  for (var key in watch) {
+    var handler = watch[key];
+    if (Array.isArray(handler)) {
+      for (var i = 0; i < handler.length; i++) {
+        createWatcher(vm, key, handler[i]);
+      }
+    } else {
+      createWatcher(vm, key, handler);
+    }
+  }
+}
+
+function createWatcher (
+  vm,
+  expOrFn,
+  handler,
+  options
+) {
+  if (isPlainObject(handler)) {
+    options = handler;
+    handler = handler.handler;
+  }
+  if (typeof handler === 'string') {
+    handler = vm[handler];
+  }
+  return vm.$watch(expOrFn, handler, options)
+}
+
+function stateMixin (Vue) {
+  // flow somehow has problems with directly declared definition object
+  // when using Object.defineProperty, so we have to procedurally build up
+  // the object here.
+  var dataDef = {};
+  dataDef.get = function () { return this._data };
+  var propsDef = {};
+  propsDef.get = function () { return this._props };
+  {
+    dataDef.set = function (newData) {
+      warn(
+        'Avoid replacing instance root $data. ' +
+        'Use nested data properties instead.',
+        this
+      );
+    };
+    propsDef.set = function () {
+      warn("$props is readonly.", this);
+    };
+  }
+  Object.defineProperty(Vue.prototype, '$data', dataDef);
+  Object.defineProperty(Vue.prototype, '$props', propsDef);
+
+  Vue.prototype.$set = set;
+  Vue.prototype.$delete = del;
+
+  Vue.prototype.$watch = function (
+    expOrFn,
+    cb,
+    options
+  ) {
+    var vm = this;
+    if (isPlainObject(cb)) {
+      return createWatcher(vm, expOrFn, cb, options)
+    }
+    options = options || {};
+    options.user = true;
+    var watcher = new Watcher(vm, expOrFn, cb, options);
+    if (options.immediate) {
+      cb.call(vm, watcher.value);
+    }
+    return function unwatchFn () {
+      watcher.teardown();
+    }
+  };
+}
+
+/*  */
+
+function initProvide (vm) {
+  var provide = vm.$options.provide;
+  if (provide) {
+    vm._provided = typeof provide === 'function'
+      ? provide.call(vm)
+      : provide;
+  }
+}
+
+function initInjections (vm) {
+  var result = resolveInject(vm.$options.inject, vm);
+  if (result) {
+    toggleObserving(false);
+    Object.keys(result).forEach(function (key) {
+      /* istanbul ignore else */
+      {
+        defineReactive(vm, key, result[key], function () {
+          warn(
+            "Avoid mutating an injected value directly since the changes will be " +
+            "overwritten whenever the provided component re-renders. " +
+            "injection being mutated: \"" + key + "\"",
+            vm
+          );
+        });
+      }
+    });
+    toggleObserving(true);
+  }
+}
+
+function resolveInject (inject, vm) {
+  if (inject) {
+    // inject is :any because flow is not smart enough to figure out cached
+    var result = Object.create(null);
+    var keys = hasSymbol
+      ? Reflect.ownKeys(inject).filter(function (key) {
+        /* istanbul ignore next */
+        return Object.getOwnPropertyDescriptor(inject, key).enumerable
+      })
+      : Object.keys(inject);
+
+    for (var i = 0; i < keys.length; i++) {
+      var key = keys[i];
+      var provideKey = inject[key].from;
+      var source = vm;
+      while (source) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
+          result[key] = source._provided[provideKey];
+          break
+        }
+        source = source.$parent;
+      }
+      if (!source) {
+        if ('default' in inject[key]) {
+          var provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else {
+          warn(("Injection \"" + key + "\" not found"), vm);
+        }
+      }
+    }
+    return result
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
+) {
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
+    }
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
+    }
+  } else if (isObject(val)) {
+    keys = Object.keys(val);
+    ret = new Array(keys.length);
+    for (i = 0, l = keys.length; i < l; i++) {
+      key = keys[i];
+      ret[i] = render(val[key], key, i);
+    }
+  }
+  if (isDef(ret)) {
+    (ret)._isVList = true;
+  }
+  return ret
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering <slot>
+ */
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
+) {
+  var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if ("development" !== 'production' && !isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
+      }
+      props = extend(extend({}, bindObject), props);
+    }
+    nodes = scopedSlotFn(props) || fallback;
+  } else {
+    var slotNodes = this.$slots[name];
+    // warn duplicate slot usage
+    if (slotNodes) {
+      if ("development" !== 'production' && slotNodes._rendered) {
+        warn(
+          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+          "- this will likely cause render errors.",
+          this
+        );
+      }
+      slotNodes._rendered = true;
+    }
+    nodes = slotNodes || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
+}
+
+/*  */
+
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
+  }
+}
+
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
+) {
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
+  data,
+  tag,
+  value,
+  asProp,
+  isSync
+) {
+  if (value) {
+    if (!isObject(value)) {
+      "development" !== 'production' && warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
+    } else {
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        if (!(key in hash)) {
+          hash[key] = value[key];
+
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + key)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
+
+      for (var key in value) loop( key );
+    }
+  }
+  return data
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
+) {
+  var cached = this._staticTrees || (this._staticTrees = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree.
+  if (tree && !isInFor) {
+    return tree
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
+  markStatic(tree, ("__static__" + index), false);
+  return tree
+}
+
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
+      }
+    }
+  } else {
+    markStaticNode(tree, key, isOnce);
+  }
+}
+
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      "development" !== 'production' && warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(existing, ours) : ours;
+      }
+    }
+  }
+  return data
+}
+
+/*  */
+
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+}
+
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  var options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
+  }
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = function () { return resolveSlots(children, parent); };
+
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = data.scopedSlots || emptyObject;
+  }
+
+  if (options._scopeId) {
+    this._c = function (a, b, c, d) {
+      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode && !Array.isArray(vnode)) {
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+  }
+}
+
+installRenderHelpers(FunctionalRenderContext.prototype);
+
+function createFunctionalComponent (
+  Ctor,
+  propsData,
+  data,
+  contextVm,
+  children
+) {
+  var options = Ctor.options;
+  var props = {};
+  var propOptions = options.props;
+  if (isDef(propOptions)) {
+    for (var key in propOptions) {
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
+    }
+  } else {
+    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+    if (isDef(data.props)) { mergeProps(props, data.props); }
+  }
+
+  var renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
+
+  var vnode = options.render.call(null, renderContext._c, renderContext);
+
+  if (vnode instanceof VNode) {
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
+  } else if (Array.isArray(vnode)) {
+    var vnodes = normalizeChildren(vnode) || [];
+    var res = new Array(vnodes.length);
+    for (var i = 0; i < vnodes.length; i++) {
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
+    }
+    return res
+  }
+}
+
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  var clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
+  if (data.slot) {
+    (clone.data || (clone.data = {})).slot = data.slot;
+  }
+  return clone
+}
+
+function mergeProps (to, from) {
+  for (var key in from) {
+    to[camelize(key)] = from[key];
+  }
+}
+
+/*  */
+
+
+
+
+// Register the component hook to weex native render engine.
+// The hook will be triggered by native, not javascript.
+
+
+// Updates the state of the component to weex native render engine.
+
+/*  */
+
+// https://github.com/Hanks10100/weex-native-directive/tree/master/component
+
+// listening on native callback
+
+/*  */
+
+/*  */
+
+// inline hooks to be invoked on component VNodes during patch
+var componentVNodeHooks = {
+  init: function init (
+    vnode,
+    hydrating,
+    parentElm,
+    refElm
+  ) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
+      var child = vnode.componentInstance = createComponentInstanceForVnode(
+        vnode,
+        activeInstance,
+        parentElm,
+        refElm
+      );
+      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+    }
+  },
+
+  prepatch: function prepatch (oldVnode, vnode) {
+    var options = vnode.componentOptions;
+    var child = vnode.componentInstance = oldVnode.componentInstance;
+    updateChildComponent(
+      child,
+      options.propsData, // updated props
+      options.listeners, // updated listeners
+      vnode, // new parent vnode
+      options.children // new children
+    );
+  },
+
+  insert: function insert (vnode) {
+    var context = vnode.context;
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isMounted) {
+      componentInstance._isMounted = true;
+      callHook(componentInstance, 'mounted');
+    }
+    if (vnode.data.keepAlive) {
+      if (context._isMounted) {
+        // vue-router#1212
+        // During updates, a kept-alive component's child components may
+        // change, so directly walking the tree here may call activated hooks
+        // on incorrect children. Instead we push them into a queue which will
+        // be processed after the whole patch process ended.
+        queueActivatedComponent(componentInstance);
+      } else {
+        activateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  },
+
+  destroy: function destroy (vnode) {
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isDestroyed) {
+      if (!vnode.data.keepAlive) {
+        componentInstance.$destroy();
+      } else {
+        deactivateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  }
+};
+
+var hooksToMerge = Object.keys(componentVNodeHooks);
+
+function createComponent (
+  Ctor,
+  data,
+  context,
+  children,
+  tag
+) {
+  if (isUndef(Ctor)) {
+    return
+  }
+
+  var baseCtor = context.$options._base;
+
+  // plain options object: turn it into a constructor
+  if (isObject(Ctor)) {
+    Ctor = baseCtor.extend(Ctor);
+  }
+
+  // if at this stage it's not a constructor or an async component factory,
+  // reject.
+  if (typeof Ctor !== 'function') {
+    {
+      warn(("Invalid Component definition: " + (String(Ctor))), context);
+    }
+    return
+  }
+
+  // async component
+  var asyncFactory;
+  if (isUndef(Ctor.cid)) {
+    asyncFactory = Ctor;
+    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
+    if (Ctor === undefined) {
+      // return a placeholder node for async component, which is rendered
+      // as a comment node but preserves all the raw information for the node.
+      // the information will be used for async server-rendering and hydration.
+      return createAsyncPlaceholder(
+        asyncFactory,
+        data,
+        context,
+        children,
+        tag
+      )
+    }
+  }
+
+  data = data || {};
+
+  // resolve constructor options in case global mixins are applied after
+  // component constructor creation
+  resolveConstructorOptions(Ctor);
+
+  // transform component v-model data into props & events
+  if (isDef(data.model)) {
+    transformModel(Ctor.options, data);
+  }
+
+  // extract props
+  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
+
+  // functional component
+  if (isTrue(Ctor.options.functional)) {
+    return createFunctionalComponent(Ctor, propsData, data, context, children)
+  }
+
+  // extract listeners, since these needs to be treated as
+  // child component listeners instead of DOM listeners
+  var listeners = data.on;
+  // replace with listeners with .native modifier
+  // so it gets processed during parent component patch.
+  data.on = data.nativeOn;
+
+  if (isTrue(Ctor.options.abstract)) {
+    // abstract components do not keep anything
+    // other than props & listeners & slot
+
+    // work around flow
+    var slot = data.slot;
+    data = {};
+    if (slot) {
+      data.slot = slot;
+    }
+  }
+
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
+
+  // return a placeholder vnode
+  var name = Ctor.options.name || tag;
+  var vnode = new VNode(
+    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
+    data, undefined, undefined, undefined, context,
+    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
+    asyncFactory
+  );
+
+  // Weex specific: invoke recycle-list optimized @render function for
+  // extracting cell-slot template.
+  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
+  /* istanbul ignore if */
+  return vnode
+}
+
+function createComponentInstanceForVnode (
+  vnode, // we know it's MountedComponentVNode but flow doesn't
+  parent, // activeInstance in lifecycle state
+  parentElm,
+  refElm
+) {
+  var options = {
+    _isComponent: true,
+    parent: parent,
+    _parentVnode: vnode,
+    _parentElm: parentElm || null,
+    _refElm: refElm || null
+  };
+  // check inline-template render functions
+  var inlineTemplate = vnode.data.inlineTemplate;
+  if (isDef(inlineTemplate)) {
+    options.render = inlineTemplate.render;
+    options.staticRenderFns = inlineTemplate.staticRenderFns;
+  }
+  return new vnode.componentOptions.Ctor(options)
+}
+
+function installComponentHooks (data) {
+  var hooks = data.hook || (data.hook = {});
+  for (var i = 0; i < hooksToMerge.length; i++) {
+    var key = hooksToMerge[i];
+    hooks[key] = componentVNodeHooks[key];
+  }
+}
+
+// transform component v-model info (value and callback) into
+// prop and event handler respectively.
+function transformModel (options, data) {
+  var prop = (options.model && options.model.prop) || 'value';
+  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
+  var on = data.on || (data.on = {});
+  if (isDef(on[event])) {
+    on[event] = [data.model.callback].concat(on[event]);
+  } else {
+    on[event] = data.model.callback;
+  }
+}
+
+/*  */
+
+var SIMPLE_NORMALIZE = 1;
+var ALWAYS_NORMALIZE = 2;
+
+// wrapper function for providing a more flexible interface
+// without getting yelled at by flow
+function createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType,
+  alwaysNormalize
+) {
+  if (Array.isArray(data) || isPrimitive(data)) {
+    normalizationType = children;
+    children = data;
+    data = undefined;
+  }
+  if (isTrue(alwaysNormalize)) {
+    normalizationType = ALWAYS_NORMALIZE;
+  }
+  return _createElement(context, tag, data, children, normalizationType)
+}
+
+function _createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType
+) {
+  if (isDef(data) && isDef((data).__ob__)) {
+    "development" !== 'production' && warn(
+      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+      'Always create fresh vnode data objects in each render!',
+      context
+    );
+    return createEmptyVNode()
+  }
+  // object syntax in v-bind
+  if (isDef(data) && isDef(data.is)) {
+    tag = data.is;
+  }
+  if (!tag) {
+    // in case of component :is set to falsy value
+    return createEmptyVNode()
+  }
+  // warn against non-primitive key
+  if ("development" !== 'production' &&
+    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  ) {
+    {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      );
+    }
+  }
+  // support single function children as default scoped slot
+  if (Array.isArray(children) &&
+    typeof children[0] === 'function'
+  ) {
+    data = data || {};
+    data.scopedSlots = { default: children[0] };
+    children.length = 0;
+  }
+  if (normalizationType === ALWAYS_NORMALIZE) {
+    children = normalizeChildren(children);
+  } else if (normalizationType === SIMPLE_NORMALIZE) {
+    children = simpleNormalizeChildren(children);
+  }
+  var vnode, ns;
+  if (typeof tag === 'string') {
+    var Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
+    } else {
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
+    }
+  } else {
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
+  }
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
+    return vnode
+  } else {
+    return createEmptyVNode()
+  }
+}
+
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
+  }
+  if (isDef(vnode.children)) {
+    for (var i = 0, l = vnode.children.length; i < l; i++) {
+      var child = vnode.children[i];
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
+        applyNS(child, ns, force);
+      }
+    }
+  }
+}
+
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
+  }
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
+/*  */
+
+function initRender (vm) {
+  vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
+  var options = vm.$options;
+  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
+  var renderContext = parentVnode && parentVnode.context;
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
+  vm.$scopedSlots = emptyObject;
+  // bind the createElement fn to this instance
+  // so that we get proper render context inside it.
+  // args order: tag, data, children, normalizationType, alwaysNormalize
+  // internal version is used by render functions compiled from templates
+  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
+  // normalization is always applied for the public version, used in
+  // user-written render functions.
+  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+
+  // $attrs & $listeners are exposed for easier HOC creation.
+  // they need to be reactive so that HOCs using them are always updated
+  var parentData = parentVnode && parentVnode.data;
+
+  /* istanbul ignore else */
+  {
+    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
+    }, true);
+    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
+      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
+    }, true);
+  }
+}
+
+function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
+
+  Vue.prototype.$nextTick = function (fn) {
+    return nextTick(fn, this)
+  };
+
+  Vue.prototype._render = function () {
+    var vm = this;
+    var ref = vm.$options;
+    var render = ref.render;
+    var _parentVnode = ref._parentVnode;
+
+    // reset _rendered flag on slots for duplicate slot check
+    {
+      for (var key in vm.$slots) {
+        // $flow-disable-line
+        vm.$slots[key]._rendered = false;
+      }
+    }
+
+    if (_parentVnode) {
+      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
+    }
+
+    // set parent vnode. this allows render functions to have access
+    // to the data on the placeholder node.
+    vm.$vnode = _parentVnode;
+    // render self
+    var vnode;
+    try {
+      vnode = render.call(vm._renderProxy, vm.$createElement);
+    } catch (e) {
+      handleError(e, vm, "render");
+      // return error render result,
+      // or previous vnode to prevent render error causing blank component
+      /* istanbul ignore else */
+      {
+        if (vm.$options.renderError) {
+          try {
+            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+          } catch (e) {
+            handleError(e, vm, "renderError");
+            vnode = vm._vnode;
+          }
+        } else {
+          vnode = vm._vnode;
+        }
+      }
+    }
+    // return empty vnode in case the render function errored out
+    if (!(vnode instanceof VNode)) {
+      if ("development" !== 'production' && Array.isArray(vnode)) {
+        warn(
+          'Multiple root nodes returned from render function. Render function ' +
+          'should return a single root node.',
+          vm
+        );
+      }
+      vnode = createEmptyVNode();
+    }
+    // set parent
+    vnode.parent = _parentVnode;
+    return vnode
+  };
+}
+
+/*  */
+
+var uid$3 = 0;
+
+function initMixin (Vue) {
+  Vue.prototype._init = function (options) {
+    var vm = this;
+    // a uid
+    vm._uid = uid$3++;
+
+    var startTag, endTag;
+    /* istanbul ignore if */
+    if ("development" !== 'production' && config.performance && mark) {
+      startTag = "vue-perf-start:" + (vm._uid);
+      endTag = "vue-perf-end:" + (vm._uid);
+      mark(startTag);
+    }
+
+    // a flag to avoid this being observed
+    vm._isVue = true;
+    // merge options
+    if (options && options._isComponent) {
+      // optimize internal component instantiation
+      // since dynamic options merging is pretty slow, and none of the
+      // internal component options needs special treatment.
+      initInternalComponent(vm, options);
+    } else {
+      vm.$options = mergeOptions(
+        resolveConstructorOptions(vm.constructor),
+        options || {},
+        vm
+      );
+    }
+    /* istanbul ignore else */
+    {
+      initProxy(vm);
+    }
+    // expose real self
+    vm._self = vm;
+    initLifecycle(vm);
+    initEvents(vm);
+    initRender(vm);
+    callHook(vm, 'beforeCreate');
+    initInjections(vm); // resolve injections before data/props
+    initState(vm);
+    initProvide(vm); // resolve provide after data/props
+    callHook(vm, 'created');
+
+    /* istanbul ignore if */
+    if ("development" !== 'production' && config.performance && mark) {
+      vm._name = formatComponentName(vm, false);
+      mark(endTag);
+      measure(("vue " + (vm._name) + " init"), startTag, endTag);
+    }
+
+    if (vm.$options.el) {
+      vm.$mount(vm.$options.el);
+    }
+  };
+}
+
+function initInternalComponent (vm, options) {
+  var opts = vm.$options = Object.create(vm.constructor.options);
+  // doing this because it's faster than dynamic enumeration.
+  var parentVnode = options._parentVnode;
+  opts.parent = options.parent;
+  opts._parentVnode = parentVnode;
+  opts._parentElm = options._parentElm;
+  opts._refElm = options._refElm;
+
+  var vnodeComponentOptions = parentVnode.componentOptions;
+  opts.propsData = vnodeComponentOptions.propsData;
+  opts._parentListeners = vnodeComponentOptions.listeners;
+  opts._renderChildren = vnodeComponentOptions.children;
+  opts._componentTag = vnodeComponentOptions.tag;
+
+  if (options.render) {
+    opts.render = options.render;
+    opts.staticRenderFns = options.staticRenderFns;
+  }
+}
+
+function resolveConstructorOptions (Ctor) {
+  var options = Ctor.options;
+  if (Ctor.super) {
+    var superOptions = resolveConstructorOptions(Ctor.super);
+    var cachedSuperOptions = Ctor.superOptions;
+    if (superOptions !== cachedSuperOptions) {
+      // super option changed,
+      // need to resolve new options.
+      Ctor.superOptions = superOptions;
+      // check if there are any late-modified/attached options (#4976)
+      var modifiedOptions = resolveModifiedOptions(Ctor);
+      // update base extend options
+      if (modifiedOptions) {
+        extend(Ctor.extendOptions, modifiedOptions);
+      }
+      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
+      if (options.name) {
+        options.components[options.name] = Ctor;
+      }
+    }
+  }
+  return options
+}
+
+function resolveModifiedOptions (Ctor) {
+  var modified;
+  var latest = Ctor.options;
+  var extended = Ctor.extendOptions;
+  var sealed = Ctor.sealedOptions;
+  for (var key in latest) {
+    if (latest[key] !== sealed[key]) {
+      if (!modified) { modified = {}; }
+      modified[key] = dedupe(latest[key], extended[key], sealed[key]);
+    }
+  }
+  return modified
+}
+
+function dedupe (latest, extended, sealed) {
+  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
+  // between merges
+  if (Array.isArray(latest)) {
+    var res = [];
+    sealed = Array.isArray(sealed) ? sealed : [sealed];
+    extended = Array.isArray(extended) ? extended : [extended];
+    for (var i = 0; i < latest.length; i++) {
+      // push original options and not sealed options to exclude duplicated options
+      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
+        res.push(latest[i]);
+      }
+    }
+    return res
+  } else {
+    return latest
+  }
+}
+
+function Vue (options) {
+  if ("development" !== 'production' &&
+    !(this instanceof Vue)
+  ) {
+    warn('Vue is a constructor and should be called with the `new` keyword');
+  }
+  this._init(options);
+}
+
+initMixin(Vue);
+stateMixin(Vue);
+eventsMixin(Vue);
+lifecycleMixin(Vue);
+renderMixin(Vue);
+
+/*  */
+
+function initUse (Vue) {
+  Vue.use = function (plugin) {
+    var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
+    if (installedPlugins.indexOf(plugin) > -1) {
+      return this
+    }
+
+    // additional parameters
+    var args = toArray(arguments, 1);
+    args.unshift(this);
+    if (typeof plugin.install === 'function') {
+      plugin.install.apply(plugin, args);
+    } else if (typeof plugin === 'function') {
+      plugin.apply(null, args);
+    }
+    installedPlugins.push(plugin);
+    return this
+  };
+}
+
+/*  */
+
+function initMixin$1 (Vue) {
+  Vue.mixin = function (mixin) {
+    this.options = mergeOptions(this.options, mixin);
+    return this
+  };
+}
+
+/*  */
+
+function initExtend (Vue) {
+  /**
+   * Each instance constructor, including Vue, has a unique
+   * cid. This enables us to create wrapped "child
+   * constructors" for prototypal inheritance and cache them.
+   */
+  Vue.cid = 0;
+  var cid = 1;
+
+  /**
+   * Class inheritance
+   */
+  Vue.extend = function (extendOptions) {
+    extendOptions = extendOptions || {};
+    var Super = this;
+    var SuperId = Super.cid;
+    var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
+    if (cachedCtors[SuperId]) {
+      return cachedCtors[SuperId]
+    }
+
+    var name = extendOptions.name || Super.options.name;
+    if ("development" !== 'production' && name) {
+      validateComponentName(name);
+    }
+
+    var Sub = function VueComponent (options) {
+      this._init(options);
+    };
+    Sub.prototype = Object.create(Super.prototype);
+    Sub.prototype.constructor = Sub;
+    Sub.cid = cid++;
+    Sub.options = mergeOptions(
+      Super.options,
+      extendOptions
+    );
+    Sub['super'] = Super;
+
+    // For props and computed properties, we define the proxy getters on
+    // the Vue instances at extension time, on the extended prototype. This
+    // avoids Object.defineProperty calls for each instance created.
+    if (Sub.options.props) {
+      initProps$1(Sub);
+    }
+    if (Sub.options.computed) {
+      initComputed$1(Sub);
+    }
+
+    // allow further extension/mixin/plugin usage
+    Sub.extend = Super.extend;
+    Sub.mixin = Super.mixin;
+    Sub.use = Super.use;
+
+    // create asset registers, so extended classes
+    // can have their private assets too.
+    ASSET_TYPES.forEach(function (type) {
+      Sub[type] = Super[type];
+    });
+    // enable recursive self-lookup
+    if (name) {
+      Sub.options.components[name] = Sub;
+    }
+
+    // keep a reference to the super options at extension time.
+    // later at instantiation we can check if Super's options have
+    // been updated.
+    Sub.superOptions = Super.options;
+    Sub.extendOptions = extendOptions;
+    Sub.sealedOptions = extend({}, Sub.options);
+
+    // cache constructor
+    cachedCtors[SuperId] = Sub;
+    return Sub
+  };
+}
+
+function initProps$1 (Comp) {
+  var props = Comp.options.props;
+  for (var key in props) {
+    proxy(Comp.prototype, "_props", key);
+  }
+}
+
+function initComputed$1 (Comp) {
+  var computed = Comp.options.computed;
+  for (var key in computed) {
+    defineComputed(Comp.prototype, key, computed[key]);
+  }
+}
+
+/*  */
+
+function initAssetRegisters (Vue) {
+  /**
+   * Create asset registration methods.
+   */
+  ASSET_TYPES.forEach(function (type) {
+    Vue[type] = function (
+      id,
+      definition
+    ) {
+      if (!definition) {
+        return this.options[type + 's'][id]
+      } else {
+        /* istanbul ignore if */
+        if ("development" !== 'production' && type === 'component') {
+          validateComponentName(id);
+        }
+        if (type === 'component' && isPlainObject(definition)) {
+          definition.name = definition.name || id;
+          definition = this.options._base.extend(definition);
+        }
+        if (type === 'directive' && typeof definition === 'function') {
+          definition = { bind: definition, update: definition };
+        }
+        this.options[type + 's'][id] = definition;
+        return definition
+      }
+    };
+  });
+}
+
+/*  */
+
+function getComponentName (opts) {
+  return opts && (opts.Ctor.options.name || opts.tag)
+}
+
+function matches (pattern, name) {
+  if (Array.isArray(pattern)) {
+    return pattern.indexOf(name) > -1
+  } else if (typeof pattern === 'string') {
+    return pattern.split(',').indexOf(name) > -1
+  } else if (isRegExp(pattern)) {
+    return pattern.test(name)
+  }
+  /* istanbul ignore next */
+  return false
+}
+
+function pruneCache (keepAliveInstance, filter) {
+  var cache = keepAliveInstance.cache;
+  var keys = keepAliveInstance.keys;
+  var _vnode = keepAliveInstance._vnode;
+  for (var key in cache) {
+    var cachedNode = cache[key];
+    if (cachedNode) {
+      var name = getComponentName(cachedNode.componentOptions);
+      if (name && !filter(name)) {
+        pruneCacheEntry(cache, key, keys, _vnode);
+      }
+    }
+  }
+}
+
+function pruneCacheEntry (
+  cache,
+  key,
+  keys,
+  current
+) {
+  var cached$$1 = cache[key];
+  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
+    cached$$1.componentInstance.$destroy();
+  }
+  cache[key] = null;
+  remove(keys, key);
+}
+
+var patternTypes = [String, RegExp, Array];
+
+var KeepAlive = {
+  name: 'keep-alive',
+  abstract: true,
+
+  props: {
+    include: patternTypes,
+    exclude: patternTypes,
+    max: [String, Number]
+  },
+
+  created: function created () {
+    this.cache = Object.create(null);
+    this.keys = [];
+  },
+
+  destroyed: function destroyed () {
+    var this$1 = this;
+
+    for (var key in this$1.cache) {
+      pruneCacheEntry(this$1.cache, key, this$1.keys);
+    }
+  },
+
+  mounted: function mounted () {
+    var this$1 = this;
+
+    this.$watch('include', function (val) {
+      pruneCache(this$1, function (name) { return matches(val, name); });
+    });
+    this.$watch('exclude', function (val) {
+      pruneCache(this$1, function (name) { return !matches(val, name); });
+    });
+  },
+
+  render: function render () {
+    var slot = this.$slots.default;
+    var vnode = getFirstComponentChild(slot);
+    var componentOptions = vnode && vnode.componentOptions;
+    if (componentOptions) {
+      // check pattern
+      var name = getComponentName(componentOptions);
+      var ref = this;
+      var include = ref.include;
+      var exclude = ref.exclude;
+      if (
+        // not included
+        (include && (!name || !matches(include, name))) ||
+        // excluded
+        (exclude && name && matches(exclude, name))
+      ) {
+        return vnode
+      }
+
+      var ref$1 = this;
+      var cache = ref$1.cache;
+      var keys = ref$1.keys;
+      var key = vnode.key == null
+        // same constructor may get registered as different local components
+        // so cid alone is not enough (#3269)
+        ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
+        : vnode.key;
+      if (cache[key]) {
+        vnode.componentInstance = cache[key].componentInstance;
+        // make current key freshest
+        remove(keys, key);
+        keys.push(key);
+      } else {
+        cache[key] = vnode;
+        keys.push(key);
+        // prune oldest entry
+        if (this.max && keys.length > parseInt(this.max)) {
+          pruneCacheEntry(cache, keys[0], keys, this._vnode);
+        }
+      }
+
+      vnode.data.keepAlive = true;
+    }
+    return vnode || (slot && slot[0])
+  }
+}
+
+var builtInComponents = {
+  KeepAlive: KeepAlive
+}
+
+/*  */
+
+function initGlobalAPI (Vue) {
+  // config
+  var configDef = {};
+  configDef.get = function () { return config; };
+  {
+    configDef.set = function () {
+      warn(
+        'Do not replace the Vue.config object, set individual fields instead.'
+      );
+    };
+  }
+  Object.defineProperty(Vue, 'config', configDef);
+
+  // exposed util methods.
+  // NOTE: these are not considered part of the public API - avoid relying on
+  // them unless you are aware of the risk.
+  Vue.util = {
+    warn: warn,
+    extend: extend,
+    mergeOptions: mergeOptions,
+    defineReactive: defineReactive
+  };
+
+  Vue.set = set;
+  Vue.delete = del;
+  Vue.nextTick = nextTick;
+
+  Vue.options = Object.create(null);
+  ASSET_TYPES.forEach(function (type) {
+    Vue.options[type + 's'] = Object.create(null);
+  });
+
+  // this is used to identify the "base" constructor to extend all plain-object
+  // components with in Weex's multi-instance scenarios.
+  Vue.options._base = Vue;
+
+  extend(Vue.options.components, builtInComponents);
+
+  initUse(Vue);
+  initMixin$1(Vue);
+  initExtend(Vue);
+  initAssetRegisters(Vue);
+}
+
+initGlobalAPI(Vue);
+
+Object.defineProperty(Vue.prototype, '$isServer', {
+  get: isServerRendering
+});
+
+Object.defineProperty(Vue.prototype, '$ssrContext', {
+  get: function get () {
+    /* istanbul ignore next */
+    return this.$vnode && this.$vnode.ssrContext
+  }
+});
+
+// expose FunctionalRenderContext for ssr runtime helper installation
+Object.defineProperty(Vue, 'FunctionalRenderContext', {
+  value: FunctionalRenderContext
+});
+
+Vue.version = '2.5.17';
+
+/*  */
+
+// these are reserved for web because they are directly compiled away
+// during template compilation
+var isReservedAttr = makeMap('style,class');
+
+// attributes that should be using props for binding
+var acceptValue = makeMap('input,textarea,option,select,progress');
+var mustUseProp = function (tag, type, attr) {
+  return (
+    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
+    (attr === 'selected' && tag === 'option') ||
+    (attr === 'checked' && tag === 'input') ||
+    (attr === 'muted' && tag === 'video')
+  )
+};
+
+var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
+
+var isBooleanAttr = makeMap(
+  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
+  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
+  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
+  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
+  'required,reversed,scoped,seamless,selected,sortable,translate,' +
+  'truespeed,typemustmatch,visible'
+);
+
+var xlinkNS = 'http://www.w3.org/1999/xlink';
+
+var isXlink = function (name) {
+  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
+};
+
+var getXlinkProp = function (name) {
+  return isXlink(name) ? name.slice(6, name.length) : ''
+};
+
+var isFalsyAttrValue = function (val) {
+  return val == null || val === false
+};
+
+/*  */
+
+function genClassForVnode (vnode) {
+  var data = vnode.data;
+  var parentNode = vnode;
+  var childNode = vnode;
+  while (isDef(childNode.componentInstance)) {
+    childNode = childNode.componentInstance._vnode;
+    if (childNode && childNode.data) {
+      data = mergeClassData(childNode.data, data);
+    }
+  }
+  while (isDef(parentNode = parentNode.parent)) {
+    if (parentNode && parentNode.data) {
+      data = mergeClassData(data, parentNode.data);
+    }
+  }
+  return renderClass(data.staticClass, data.class)
+}
+
+function mergeClassData (child, parent) {
+  return {
+    staticClass: concat(child.staticClass, parent.staticClass),
+    class: isDef(child.class)
+      ? [child.class, parent.class]
+      : parent.class
+  }
+}
+
+function renderClass (
+  staticClass,
+  dynamicClass
+) {
+  if (isDef(staticClass) || isDef(dynamicClass)) {
+    return concat(staticClass, stringifyClass(dynamicClass))
+  }
+  /* istanbul ignore next */
+  return ''
+}
+
+function concat (a, b) {
+  return a ? b ? (a + ' ' + b) : a : (b || '')
+}
+
+function stringifyClass (value) {
+  if (Array.isArray(value)) {
+    return stringifyArray(value)
+  }
+  if (isObject(value)) {
+    return stringifyObject(value)
+  }
+  if (typeof value === 'string') {
+    return value
+  }
+  /* istanbul ignore next */
+  return ''
+}
+
+function stringifyArray (value) {
+  var res = '';
+  var stringified;
+  for (var i = 0, l = value.length; i < l; i++) {
+    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
+      if (res) { res += ' '; }
+      res += stringified;
+    }
+  }
+  return res
+}
+
+function stringifyObject (value) {
+  var res = '';
+  for (var key in value) {
+    if (value[key]) {
+      if (res) { res += ' '; }
+      res += key;
+    }
+  }
+  return res
+}
+
+/*  */
+
+var namespaceMap = {
+  svg: 'http://www.w3.org/2000/svg',
+  math: 'http://www.w3.org/1998/Math/MathML'
+};
+
+var isHTMLTag = makeMap(
+  'html,body,base,head,link,meta,style,title,' +
+  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
+  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
+  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
+  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
+  'embed,object,param,source,canvas,script,noscript,del,ins,' +
+  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
+  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
+  'output,progress,select,textarea,' +
+  'details,dialog,menu,menuitem,summary,' +
+  'content,element,shadow,template,blockquote,iframe,tfoot'
+);
+
+// this map is intentionally selective, only covering SVG elements that may
+// contain child elements.
+var isSVG = makeMap(
+  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
+  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
+  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
+  true
+);
+
+var isPreTag = function (tag) { return tag === 'pre'; };
+
+var isReservedTag = function (tag) {
+  return isHTMLTag(tag) || isSVG(tag)
+};
+
+function getTagNamespace (tag) {
+  if (isSVG(tag)) {
+    return 'svg'
+  }
+  // basic support for MathML
+  // note it doesn't support other MathML elements being component roots
+  if (tag === 'math') {
+    return 'math'
+  }
+}
+
+var unknownElementCache = Object.create(null);
+function isUnknownElement (tag) {
+  /* istanbul ignore if */
+  if (!inBrowser) {
+    return true
+  }
+  if (isReservedTag(tag)) {
+    return false
+  }
+  tag = tag.toLowerCase();
+  /* istanbul ignore if */
+  if (unknownElementCache[tag] != null) {
+    return unknownElementCache[tag]
+  }
+  var el = document.createElement(tag);
+  if (tag.indexOf('-') > -1) {
+    // http://stackoverflow.com/a/28210364/1070244
+    return (unknownElementCache[tag] = (
+      el.constructor === window.HTMLUnknownElement ||
+      el.constructor === window.HTMLElement
+    ))
+  } else {
+    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
+  }
+}
+
+var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
+/*  */
+
+/**
+ * Query an element selector if it's not an element already.
+ */
+function query (el) {
+  if (typeof el === 'string') {
+    var selected = document.querySelector(el);
+    if (!selected) {
+      "development" !== 'production' && warn(
+        'Cannot find element: ' + el
+      );
+      return document.createElement('div')
+    }
+    return selected
+  } else {
+    return el
+  }
+}
+
+/*  */
+
+function createElement$1 (tagName, vnode) {
+  var elm = document.createElement(tagName);
+  if (tagName !== 'select') {
+    return elm
+  }
+  // false or null will remove the attribute but undefined will not
+  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
+    elm.setAttribute('multiple', 'multiple');
+  }
+  return elm
+}
+
+function createElementNS (namespace, tagName) {
+  return document.createElementNS(namespaceMap[namespace], tagName)
+}
+
+function createTextNode (text) {
+  return document.createTextNode(text)
+}
+
+function createComment (text) {
+  return document.createComment(text)
+}
+
+function insertBefore (parentNode, newNode, referenceNode) {
+  parentNode.insertBefore(newNode, referenceNode);
+}
+
+function removeChild (node, child) {
+  node.removeChild(child);
+}
+
+function appendChild (node, child) {
+  node.appendChild(child);
+}
+
+function parentNode (node) {
+  return node.parentNode
+}
+
+function nextSibling (node) {
+  return node.nextSibling
+}
+
+function tagName (node) {
+  return node.tagName
+}
+
+function setTextContent (node, text) {
+  node.textContent = text;
+}
+
+function setStyleScope (node, scopeId) {
+  node.setAttribute(scopeId, '');
+}
+
+
+var nodeOps = Object.freeze({
+	createElement: createElement$1,
+	createElementNS: createElementNS,
+	createTextNode: createTextNode,
+	createComment: createComment,
+	insertBefore: insertBefore,
+	removeChild: removeChild,
+	appendChild: appendChild,
+	parentNode: parentNode,
+	nextSibling: nextSibling,
+	tagName: tagName,
+	setTextContent: setTextContent,
+	setStyleScope: setStyleScope
+});
+
+/*  */
+
+var ref = {
+  create: function create (_, vnode) {
+    registerRef(vnode);
+  },
+  update: function update (oldVnode, vnode) {
+    if (oldVnode.data.ref !== vnode.data.ref) {
+      registerRef(oldVnode, true);
+      registerRef(vnode);
+    }
+  },
+  destroy: function destroy (vnode) {
+    registerRef(vnode, true);
+  }
+}
+
+function registerRef (vnode, isRemoval) {
+  var key = vnode.data.ref;
+  if (!isDef(key)) { return }
+
+  var vm = vnode.context;
+  var ref = vnode.componentInstance || vnode.elm;
+  var refs = vm.$refs;
+  if (isRemoval) {
+    if (Array.isArray(refs[key])) {
+      remove(refs[key], ref);
+    } else if (refs[key] === ref) {
+      refs[key] = undefined;
+    }
+  } else {
+    if (vnode.data.refInFor) {
+      if (!Array.isArray(refs[key])) {
+        refs[key] = [ref];
+      } else if (refs[key].indexOf(ref) < 0) {
+        // $flow-disable-line
+        refs[key].push(ref);
+      }
+    } else {
+      refs[key] = ref;
+    }
+  }
+}
+
+/**
+ * Virtual DOM patching algorithm based on Snabbdom by
+ * Simon Friis Vindum (@paldepind)
+ * Licensed under the MIT License
+ * https://github.com/paldepind/snabbdom/blob/master/LICENSE
+ *
+ * modified by Evan You (@yyx990803)
+ *
+ * Not type-checking this because this file is perf-critical and the cost
+ * of making flow understand it is not worth it.
+ */
+
+var emptyNode = new VNode('', {}, []);
+
+var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
+
+function sameVnode (a, b) {
+  return (
+    a.key === b.key && (
+      (
+        a.tag === b.tag &&
+        a.isComment === b.isComment &&
+        isDef(a.data) === isDef(b.data) &&
+        sameInputType(a, b)
+      ) || (
+        isTrue(a.isAsyncPlaceholder) &&
+        a.asyncFactory === b.asyncFactory &&
+        isUndef(b.asyncFactory.error)
+      )
+    )
+  )
+}
+
+function sameInputType (a, b) {
+  if (a.tag !== 'input') { return true }
+  var i;
+  var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
+  var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
+  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
+}
+
+function createKeyToOldIdx (children, beginIdx, endIdx) {
+  var i, key;
+  var map = {};
+  for (i = beginIdx; i <= endIdx; ++i) {
+    key = children[i].key;
+    if (isDef(key)) { map[key] = i; }
+  }
+  return map
+}
+
+function createPatchFunction (backend) {
+  var i, j;
+  var cbs = {};
+
+  var modules = backend.modules;
+  var nodeOps = backend.nodeOps;
+
+  for (i = 0; i < hooks.length; ++i) {
+    cbs[hooks[i]] = [];
+    for (j = 0; j < modules.length; ++j) {
+      if (isDef(modules[j][hooks[i]])) {
+        cbs[hooks[i]].push(modules[j][hooks[i]]);
+      }
+    }
+  }
+
+  function emptyNodeAt (elm) {
+    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
+  }
+
+  function createRmCb (childElm, listeners) {
+    function remove () {
+      if (--remove.listeners === 0) {
+        removeNode(childElm);
+      }
+    }
+    remove.listeners = listeners;
+    return remove
+  }
+
+  function removeNode (el) {
+    var parent = nodeOps.parentNode(el);
+    // element may have already been removed due to v-html / v-text
+    if (isDef(parent)) {
+      nodeOps.removeChild(parent, el);
+    }
+  }
+
+  function isUnknownElement$$1 (vnode, inVPre) {
+    return (
+      !inVPre &&
+      !vnode.ns &&
+      !(
+        config.ignoredElements.length &&
+        config.ignoredElements.some(function (ignore) {
+          return isRegExp(ignore)
+            ? ignore.test(vnode.tag)
+            : ignore === vnode.tag
+        })
+      ) &&
+      config.isUnknownElement(vnode.tag)
+    )
+  }
+
+  var creatingElmInVPre = 0;
+
+  function createElm (
+    vnode,
+    insertedVnodeQueue,
+    parentElm,
+    refElm,
+    nested,
+    ownerArray,
+    index
+  ) {
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // This vnode was used in a previous render!
+      // now it's used as a new node, overwriting its elm would cause
+      // potential patch errors down the road when it's used as an insertion
+      // reference node. Instead, we clone the node on-demand before creating
+      // associated DOM element for it.
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
+    vnode.isRootInsert = !nested; // for transition enter check
+    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
+      return
+    }
+
+    var data = vnode.data;
+    var children = vnode.children;
+    var tag = vnode.tag;
+    if (isDef(tag)) {
+      {
+        if (data && data.pre) {
+          creatingElmInVPre++;
+        }
+        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
+          warn(
+            'Unknown custom element: <' + tag + '> - did you ' +
+            'register the component correctly? For recursive components, ' +
+            'make sure to provide the "name" option.',
+            vnode.context
+          );
+        }
+      }
+
+      vnode.elm = vnode.ns
+        ? nodeOps.createElementNS(vnode.ns, tag)
+        : nodeOps.createElement(tag, vnode);
+      setScope(vnode);
+
+      /* istanbul ignore if */
+      {
+        createChildren(vnode, children, insertedVnodeQueue);
+        if (isDef(data)) {
+          invokeCreateHooks(vnode, insertedVnodeQueue);
+        }
+        insert(parentElm, vnode.elm, refElm);
+      }
+
+      if ("development" !== 'production' && data && data.pre) {
+        creatingElmInVPre--;
+      }
+    } else if (isTrue(vnode.isComment)) {
+      vnode.elm = nodeOps.createComment(vnode.text);
+      insert(parentElm, vnode.elm, refElm);
+    } else {
+      vnode.elm = nodeOps.createTextNode(vnode.text);
+      insert(parentElm, vnode.elm, refElm);
+    }
+  }
+
+  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+    var i = vnode.data;
+    if (isDef(i)) {
+      var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
+      if (isDef(i = i.hook) && isDef(i = i.init)) {
+        i(vnode, false /* hydrating */, parentElm, refElm);
+      }
+      // after calling the init hook, if the vnode is a child component
+      // it should've created a child instance and mounted it. the child
+      // component also has set the placeholder vnode's elm.
+      // in that case we can just return the element and be done.
+      if (isDef(vnode.componentInstance)) {
+        initComponent(vnode, insertedVnodeQueue);
+        if (isTrue(isReactivated)) {
+          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
+        }
+        return true
+      }
+    }
+  }
+
+  function initComponent (vnode, insertedVnodeQueue) {
+    if (isDef(vnode.data.pendingInsert)) {
+      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
+      vnode.data.pendingInsert = null;
+    }
+    vnode.elm = vnode.componentInstance.$el;
+    if (isPatchable(vnode)) {
+      invokeCreateHooks(vnode, insertedVnodeQueue);
+      setScope(vnode);
+    } else {
+      // empty component root.
+      // skip all element-related modules except for ref (#3455)
+      registerRef(vnode);
+      // make sure to invoke the insert hook
+      insertedVnodeQueue.push(vnode);
+    }
+  }
+
+  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+    var i;
+    // hack for #4339: a reactivated component with inner transition
+    // does not trigger because the inner node's created hooks are not called
+    // again. It's not ideal to involve module-specific logic in here but
+    // there doesn't seem to be a better way to do it.
+    var innerNode = vnode;
+    while (innerNode.componentInstance) {
+      innerNode = innerNode.componentInstance._vnode;
+      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
+        for (i = 0; i < cbs.activate.length; ++i) {
+          cbs.activate[i](emptyNode, innerNode);
+        }
+        insertedVnodeQueue.push(innerNode);
+        break
+      }
+    }
+    // unlike a newly created component,
+    // a reactivated keep-alive component doesn't insert itself
+    insert(parentElm, vnode.elm, refElm);
+  }
+
+  function insert (parent, elm, ref$$1) {
+    if (isDef(parent)) {
+      if (isDef(ref$$1)) {
+        if (ref$$1.parentNode === parent) {
+          nodeOps.insertBefore(parent, elm, ref$$1);
+        }
+      } else {
+        nodeOps.appendChild(parent, elm);
+      }
+    }
+  }
+
+  function createChildren (vnode, children, insertedVnodeQueue) {
+    if (Array.isArray(children)) {
+      {
+        checkDuplicateKeys(children);
+      }
+      for (var i = 0; i < children.length; ++i) {
+        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
+      }
+    } else if (isPrimitive(vnode.text)) {
+      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
+    }
+  }
+
+  function isPatchable (vnode) {
+    while (vnode.componentInstance) {
+      vnode = vnode.componentInstance._vnode;
+    }
+    return isDef(vnode.tag)
+  }
+
+  function invokeCreateHooks (vnode, insertedVnodeQueue) {
+    for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+      cbs.create[i$1](emptyNode, vnode);
+    }
+    i = vnode.data.hook; // Reuse variable
+    if (isDef(i)) {
+      if (isDef(i.create)) { i.create(emptyNode, vnode); }
+      if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
+    }
+  }
+
+  // set scope id attribute for scoped CSS.
+  // this is implemented as a special case to avoid the overhead
+  // of going through the normal attribute patching process.
+  function setScope (vnode) {
+    var i;
+    if (isDef(i = vnode.fnScopeId)) {
+      nodeOps.setStyleScope(vnode.elm, i);
+    } else {
+      var ancestor = vnode;
+      while (ancestor) {
+        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
+          nodeOps.setStyleScope(vnode.elm, i);
+        }
+        ancestor = ancestor.parent;
+      }
+    }
+    // for slot content they should also get the scopeId from the host instance.
+    if (isDef(i = activeInstance) &&
+      i !== vnode.context &&
+      i !== vnode.fnContext &&
+      isDef(i = i.$options._scopeId)
+    ) {
+      nodeOps.setStyleScope(vnode.elm, i);
+    }
+  }
+
+  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
+    for (; startIdx <= endIdx; ++startIdx) {
+      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
+    }
+  }
+
+  function invokeDestroyHook (vnode) {
+    var i, j;
+    var data = vnode.data;
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
+      for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
+    }
+    if (isDef(i = vnode.children)) {
+      for (j = 0; j < vnode.children.length; ++j) {
+        invokeDestroyHook(vnode.children[j]);
+      }
+    }
+  }
+
+  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+    for (; startIdx <= endIdx; ++startIdx) {
+      var ch = vnodes[startIdx];
+      if (isDef(ch)) {
+        if (isDef(ch.tag)) {
+          removeAndInvokeRemoveHook(ch);
+          invokeDestroyHook(ch);
+        } else { // Text node
+          removeNode(ch.elm);
+        }
+      }
+    }
+  }
+
+  function removeAndInvokeRemoveHook (vnode, rm) {
+    if (isDef(rm) || isDef(vnode.data)) {
+      var i;
+      var listeners = cbs.remove.length + 1;
+      if (isDef(rm)) {
+        // we have a recursively passed down rm callback
+        // increase the listeners count
+        rm.listeners += listeners;
+      } else {
+        // directly removing
+        rm = createRmCb(vnode.elm, listeners);
+      }
+      // recursively invoke hooks on child component root node
+      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
+        removeAndInvokeRemoveHook(i, rm);
+      }
+      for (i = 0; i < cbs.remove.length; ++i) {
+        cbs.remove[i](vnode, rm);
+      }
+      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
+        i(vnode, rm);
+      } else {
+        rm();
+      }
+    } else {
+      removeNode(vnode.elm);
+    }
+  }
+
+  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
+    var oldStartIdx = 0;
+    var newStartIdx = 0;
+    var oldEndIdx = oldCh.length - 1;
+    var oldStartVnode = oldCh[0];
+    var oldEndVnode = oldCh[oldEndIdx];
+    var newEndIdx = newCh.length - 1;
+    var newStartVnode = newCh[0];
+    var newEndVnode = newCh[newEndIdx];
+    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
+
+    // removeOnly is a special flag used only by <transition-group>
+    // to ensure removed elements stay in correct relative positions
+    // during leaving transitions
+    var canMove = !removeOnly;
+
+    {
+      checkDuplicateKeys(newCh);
+    }
+
+    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
+      if (isUndef(oldStartVnode)) {
+        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
+      } else if (isUndef(oldEndVnode)) {
+        oldEndVnode = oldCh[--oldEndIdx];
+      } else if (sameVnode(oldStartVnode, newStartVnode)) {
+        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
+        oldStartVnode = oldCh[++oldStartIdx];
+        newStartVnode = newCh[++newStartIdx];
+      } else if (sameVnode(oldEndVnode, newEndVnode)) {
+        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
+        oldEndVnode = oldCh[--oldEndIdx];
+        newEndVnode = newCh[--newEndIdx];
+      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
+        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
+        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
+        oldStartVnode = oldCh[++oldStartIdx];
+        newEndVnode = newCh[--newEndIdx];
+      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
+        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
+        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
+        oldEndVnode = oldCh[--oldEndIdx];
+        newStartVnode = newCh[++newStartIdx];
+      } else {
+        if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
+        idxInOld = isDef(newStartVnode.key)
+          ? oldKeyToIdx[newStartVnode.key]
+          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
+        if (isUndef(idxInOld)) { // New element
+          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
+        } else {
+          vnodeToMove = oldCh[idxInOld];
+          if (sameVnode(vnodeToMove, newStartVnode)) {
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
+            oldCh[idxInOld] = undefined;
+            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
+          } else {
+            // same key but different element. treat as new element
+            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
+          }
+        }
+        newStartVnode = newCh[++newStartIdx];
+      }
+    }
+    if (oldStartIdx > oldEndIdx) {
+      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
+      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
+    } else if (newStartIdx > newEndIdx) {
+      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+    }
+  }
+
+  function checkDuplicateKeys (children) {
+    var seenKeys = {};
+    for (var i = 0; i < children.length; i++) {
+      var vnode = children[i];
+      var key = vnode.key;
+      if (isDef(key)) {
+        if (seenKeys[key]) {
+          warn(
+            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
+            vnode.context
+          );
+        } else {
+          seenKeys[key] = true;
+        }
+      }
+    }
+  }
+
+  function findIdxInOld (node, oldCh, start, end) {
+    for (var i = start; i < end; i++) {
+      var c = oldCh[i];
+      if (isDef(c) && sameVnode(node, c)) { return i }
+    }
+  }
+
+  function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
+    if (oldVnode === vnode) {
+      return
+    }
+
+    var elm = vnode.elm = oldVnode.elm;
+
+    if (isTrue(oldVnode.isAsyncPlaceholder)) {
+      if (isDef(vnode.asyncFactory.resolved)) {
+        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
+      } else {
+        vnode.isAsyncPlaceholder = true;
+      }
+      return
+    }
+
+    // reuse element for static trees.
+    // note we only do this if the vnode is cloned -
+    // if the new node is not cloned it means the render functions have been
+    // reset by the hot-reload-api and we need to do a proper re-render.
+    if (isTrue(vnode.isStatic) &&
+      isTrue(oldVnode.isStatic) &&
+      vnode.key === oldVnode.key &&
+      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
+    ) {
+      vnode.componentInstance = oldVnode.componentInstance;
+      return
+    }
+
+    var i;
+    var data = vnode.data;
+    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
+      i(oldVnode, vnode);
+    }
+
+    var oldCh = oldVnode.children;
+    var ch = vnode.children;
+    if (isDef(data) && isPatchable(vnode)) {
+      for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
+      if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
+    }
+    if (isUndef(vnode.text)) {
+      if (isDef(oldCh) && isDef(ch)) {
+        if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
+      } else if (isDef(ch)) {
+        if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
+        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
+      } else if (isDef(oldCh)) {
+        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
+      } else if (isDef(oldVnode.text)) {
+        nodeOps.setTextContent(elm, '');
+      }
+    } else if (oldVnode.text !== vnode.text) {
+      nodeOps.setTextContent(elm, vnode.text);
+    }
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
+    }
+  }
+
+  function invokeInsertHook (vnode, queue, initial) {
+    // delay insert hooks for component root nodes, invoke them after the
+    // element is really inserted
+    if (isTrue(initial) && isDef(vnode.parent)) {
+      vnode.parent.data.pendingInsert = queue;
+    } else {
+      for (var i = 0; i < queue.length; ++i) {
+        queue[i].data.hook.insert(queue[i]);
+      }
+    }
+  }
+
+  var hydrationBailed = false;
+  // list of modules that can skip create hook during hydration because they
+  // are already rendered on the client or has no need for initialization
+  // Note: style is excluded because it relies on initial clone for future
+  // deep updates (#7063).
+  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
+
+  // Note: this is a browser-only function so we can assume elms are DOM nodes.
+  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
+    var i;
+    var tag = vnode.tag;
+    var data = vnode.data;
+    var children = vnode.children;
+    inVPre = inVPre || (data && data.pre);
+    vnode.elm = elm;
+
+    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
+      vnode.isAsyncPlaceholder = true;
+      return true
+    }
+    // assert node match
+    {
+      if (!assertNodeMatch(elm, vnode, inVPre)) {
+        return false
+      }
+    }
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
+      if (isDef(i = vnode.componentInstance)) {
+        // child component. it should have hydrated its own tree.
+        initComponent(vnode, insertedVnodeQueue);
+        return true
+      }
+    }
+    if (isDef(tag)) {
+      if (isDef(children)) {
+        // empty element, allow client to pick up and populate children
+        if (!elm.hasChildNodes()) {
+          createChildren(vnode, children, insertedVnodeQueue);
+        } else {
+          // v-html and domProps: innerHTML
+          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
+            if (i !== elm.innerHTML) {
+              /* istanbul ignore if */
+              if ("development" !== 'production' &&
+                typeof console !== 'undefined' &&
+                !hydrationBailed
+              ) {
+                hydrationBailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('server innerHTML: ', i);
+                console.warn('client innerHTML: ', elm.innerHTML);
+              }
+              return false
+            }
+          } else {
+            // iterate and compare children lists
+            var childrenMatch = true;
+            var childNode = elm.firstChild;
+            for (var i$1 = 0; i$1 < children.length; i$1++) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
+                childrenMatch = false;
+                break
+              }
+              childNode = childNode.nextSibling;
+            }
+            // if childNode is not null, it means the actual childNodes list is
+            // longer than the virtual children list.
+            if (!childrenMatch || childNode) {
+              /* istanbul ignore if */
+              if ("development" !== 'production' &&
+                typeof console !== 'undefined' &&
+                !hydrationBailed
+              ) {
+                hydrationBailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+              }
+              return false
+            }
+          }
+        }
+      }
+      if (isDef(data)) {
+        var fullInvoke = false;
+        for (var key in data) {
+          if (!isRenderedModule(key)) {
+            fullInvoke = true;
+            invokeCreateHooks(vnode, insertedVnodeQueue);
+            break
+          }
+        }
+        if (!fullInvoke && data['class']) {
+          // ensure collecting deps for deep class bindings for future updates
+          traverse(data['class']);
+        }
+      }
+    } else if (elm.data !== vnode.text) {
+      elm.data = vnode.text;
+    }
+    return true
+  }
+
+  function assertNodeMatch (node, vnode, inVPre) {
+    if (isDef(vnode.tag)) {
+      return vnode.tag.indexOf('vue-component') === 0 || (
+        !isUnknownElement$$1(vnode, inVPre) &&
+        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
+      )
+    } else {
+      return node.nodeType === (vnode.isComment ? 8 : 3)
+    }
+  }
+
+  return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
+    if (isUndef(vnode)) {
+      if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
+      return
+    }
+
+    var isInitialPatch = false;
+    var insertedVnodeQueue = [];
+
+    if (isUndef(oldVnode)) {
+      // empty mount (likely as component), create new root element
+      isInitialPatch = true;
+      createElm(vnode, insertedVnodeQueue, parentElm, refElm);
+    } else {
+      var isRealElement = isDef(oldVnode.nodeType);
+      if (!isRealElement && sameVnode(oldVnode, vnode)) {
+        // patch existing root node
+        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
+      } else {
+        if (isRealElement) {
+          // mounting to a real element
+          // check if this is server-rendered content and if we can perform
+          // a successful hydration.
+          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
+            oldVnode.removeAttribute(SSR_ATTR);
+            hydrating = true;
+          }
+          if (isTrue(hydrating)) {
+            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
+              invokeInsertHook(vnode, insertedVnodeQueue, true);
+              return oldVnode
+            } else {
+              warn(
+                'The client-side rendered virtual DOM tree is not matching ' +
+                'server-rendered content. This is likely caused by incorrect ' +
+                'HTML markup, for example nesting block-level elements inside ' +
+                '<p>, or missing <tbody>. Bailing hydration and performing ' +
+                'full client-side render.'
+              );
+            }
+          }
+          // either not server-rendered, or hydration failed.
+          // create an empty node and replace it
+          oldVnode = emptyNodeAt(oldVnode);
+        }
+
+        // replacing existing element
+        var oldElm = oldVnode.elm;
+        var parentElm$1 = nodeOps.parentNode(oldElm);
+
+        // create new node
+        createElm(
+          vnode,
+          insertedVnodeQueue,
+          // extremely rare edge case: do not insert if old element is in a
+          // leaving transition. Only happens when combining transition +
+          // keep-alive + HOCs. (#4590)
+          oldElm._leaveCb ? null : parentElm$1,
+          nodeOps.nextSibling(oldElm)
+        );
+
+        // update parent placeholder node element, recursively
+        if (isDef(vnode.parent)) {
+          var ancestor = vnode.parent;
+          var patchable = isPatchable(vnode);
+          while (ancestor) {
+            for (var i = 0; i < cbs.destroy.length; ++i) {
+              cbs.destroy[i](ancestor);
+            }
+            ancestor.elm = vnode.elm;
+            if (patchable) {
+              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+                cbs.create[i$1](emptyNode, ancestor);
+              }
+              // #6513
+              // invoke insert hooks that may have been merged by create hooks.
+              // e.g. for directives that uses the "inserted" hook.
+              var insert = ancestor.data.hook.insert;
+              if (insert.merged) {
+                // start at index 1 to avoid re-invoking component mounted hook
+                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
+                  insert.fns[i$2]();
+                }
+              }
+            } else {
+              registerRef(ancestor);
+            }
+            ancestor = ancestor.parent;
+          }
+        }
+
+        // destroy old node
+        if (isDef(parentElm$1)) {
+          removeVnodes(parentElm$1, [oldVnode], 0, 0);
+        } else if (isDef(oldVnode.tag)) {
+          invokeDestroyHook(oldVnode);
+        }
+      }
+    }
+
+    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
+    return vnode.elm
+  }
+}
+
+/*  */
+
+var directives = {
+  create: updateDirectives,
+  update: updateDirectives,
+  destroy: function unbindDirectives (vnode) {
+    updateDirectives(vnode, emptyNode);
+  }
+}
+
+function updateDirectives (oldVnode, vnode) {
+  if (oldVnode.data.directives || vnode.data.directives) {
+    _update(oldVnode, vnode);
+  }
+}
+
+function _update (oldVnode, vnode) {
+  var isCreate = oldVnode === emptyNode;
+  var isDestroy = vnode === emptyNode;
+  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
+  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
+
+  var dirsWithInsert = [];
+  var dirsWithPostpatch = [];
+
+  var key, oldDir, dir;
+  for (key in newDirs) {
+    oldDir = oldDirs[key];
+    dir = newDirs[key];
+    if (!oldDir) {
+      // new directive, bind
+      callHook$1(dir, 'bind', vnode, oldVnode);
+      if (dir.def && dir.def.inserted) {
+        dirsWithInsert.push(dir);
+      }
+    } else {
+      // existing directive, update
+      dir.oldValue = oldDir.value;
+      callHook$1(dir, 'update', vnode, oldVnode);
+      if (dir.def && dir.def.componentUpdated) {
+        dirsWithPostpatch.push(dir);
+      }
+    }
+  }
+
+  if (dirsWithInsert.length) {
+    var callInsert = function () {
+      for (var i = 0; i < dirsWithInsert.length; i++) {
+        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
+      }
+    };
+    if (isCreate) {
+      mergeVNodeHook(vnode, 'insert', callInsert);
+    } else {
+      callInsert();
+    }
+  }
+
+  if (dirsWithPostpatch.length) {
+    mergeVNodeHook(vnode, 'postpatch', function () {
+      for (var i = 0; i < dirsWithPostpatch.length; i++) {
+        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
+      }
+    });
+  }
+
+  if (!isCreate) {
+    for (key in oldDirs) {
+      if (!newDirs[key]) {
+        // no longer present, unbind
+        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
+      }
+    }
+  }
+}
+
+var emptyModifiers = Object.create(null);
+
+function normalizeDirectives$1 (
+  dirs,
+  vm
+) {
+  var res = Object.create(null);
+  if (!dirs) {
+    // $flow-disable-line
+    return res
+  }
+  var i, dir;
+  for (i = 0; i < dirs.length; i++) {
+    dir = dirs[i];
+    if (!dir.modifiers) {
+      // $flow-disable-line
+      dir.modifiers = emptyModifiers;
+    }
+    res[getRawDirName(dir)] = dir;
+    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
+  }
+  // $flow-disable-line
+  return res
+}
+
+function getRawDirName (dir) {
+  return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
+}
+
+function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
+  var fn = dir.def && dir.def[hook];
+  if (fn) {
+    try {
+      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
+    } catch (e) {
+      handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
+    }
+  }
+}
+
+var baseModules = [
+  ref,
+  directives
+]
+
+/*  */
+
+function updateAttrs (oldVnode, vnode) {
+  var opts = vnode.componentOptions;
+  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
+    return
+  }
+  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
+    return
+  }
+  var key, cur, old;
+  var elm = vnode.elm;
+  var oldAttrs = oldVnode.data.attrs || {};
+  var attrs = vnode.data.attrs || {};
+  // clone observed objects, as the user probably wants to mutate it
+  if (isDef(attrs.__ob__)) {
+    attrs = vnode.data.attrs = extend({}, attrs);
+  }
+
+  for (key in attrs) {
+    cur = attrs[key];
+    old = oldAttrs[key];
+    if (old !== cur) {
+      setAttr(elm, key, cur);
+    }
+  }
+  // #4391: in IE9, setting type can reset value for input[type=radio]
+  // #6666: IE/Edge forces progress value down to 1 before setting a max
+  /* istanbul ignore if */
+  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
+    setAttr(elm, 'value', attrs.value);
+  }
+  for (key in oldAttrs) {
+    if (isUndef(attrs[key])) {
+      if (isXlink(key)) {
+        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
+      } else if (!isEnumeratedAttr(key)) {
+        elm.removeAttribute(key);
+      }
+    }
+  }
+}
+
+function setAttr (el, key, value) {
+  if (el.tagName.indexOf('-') > -1) {
+    baseSetAttr(el, key, value);
+  } else if (isBooleanAttr(key)) {
+    // set attribute for blank value
+    // e.g. <option disabled>Select one</option>
+    if (isFalsyAttrValue(value)) {
+      el.removeAttribute(key);
+    } else {
+      // technically allowfullscreen is a boolean attribute for <iframe>,
+      // but Flash expects a value of "true" when used on <embed> tag
+      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
+        ? 'true'
+        : key;
+      el.setAttribute(key, value);
+    }
+  } else if (isEnumeratedAttr(key)) {
+    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
+  } else if (isXlink(key)) {
+    if (isFalsyAttrValue(value)) {
+      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
+    } else {
+      el.setAttributeNS(xlinkNS, key, value);
+    }
+  } else {
+    baseSetAttr(el, key, value);
+  }
+}
+
+function baseSetAttr (el, key, value) {
+  if (isFalsyAttrValue(value)) {
+    el.removeAttribute(key);
+  } else {
+    // #7138: IE10 & 11 fires input event when setting placeholder on
+    // <textarea>... block the first input event and remove the blocker
+    // immediately.
+    /* istanbul ignore if */
+    if (
+      isIE && !isIE9 &&
+      el.tagName === 'TEXTAREA' &&
+      key === 'placeholder' && !el.__ieph
+    ) {
+      var blocker = function (e) {
+        e.stopImmediatePropagation();
+        el.removeEventListener('input', blocker);
+      };
+      el.addEventListener('input', blocker);
+      // $flow-disable-line
+      el.__ieph = true; /* IE placeholder patched */
+    }
+    el.setAttribute(key, value);
+  }
+}
+
+var attrs = {
+  create: updateAttrs,
+  update: updateAttrs
+}
+
+/*  */
+
+function updateClass (oldVnode, vnode) {
+  var el = vnode.elm;
+  var data = vnode.data;
+  var oldData = oldVnode.data;
+  if (
+    isUndef(data.staticClass) &&
+    isUndef(data.class) && (
+      isUndef(oldData) || (
+        isUndef(oldData.staticClass) &&
+        isUndef(oldData.class)
+      )
+    )
+  ) {
+    return
+  }
+
+  var cls = genClassForVnode(vnode);
+
+  // handle transition classes
+  var transitionClass = el._transitionClasses;
+  if (isDef(transitionClass)) {
+    cls = concat(cls, stringifyClass(transitionClass));
+  }
+
+  // set the class
+  if (cls !== el._prevClass) {
+    el.setAttribute('class', cls);
+    el._prevClass = cls;
+  }
+}
+
+var klass = {
+  create: updateClass,
+  update: updateClass
+}
+
+/*  */
+
+var validDivisionCharRE = /[\w).+\-_$\]]/;
+
+function parseFilters (exp) {
+  var inSingle = false;
+  var inDouble = false;
+  var inTemplateString = false;
+  var inRegex = false;
+  var curly = 0;
+  var square = 0;
+  var paren = 0;
+  var lastFilterIndex = 0;
+  var c, prev, i, expression, filters;
+
+  for (i = 0; i < exp.length; i++) {
+    prev = c;
+    c = exp.charCodeAt(i);
+    if (inSingle) {
+      if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
+    } else if (inDouble) {
+      if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
+    } else if (inTemplateString) {
+      if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
+    } else if (inRegex) {
+      if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
+    } else if (
+      c === 0x7C && // pipe
+      exp.charCodeAt(i + 1) !== 0x7C &&
+      exp.charCodeAt(i - 1) !== 0x7C &&
+      !curly && !square && !paren
+    ) {
+      if (expression === undefined) {
+        // first filter, end of expression
+        lastFilterIndex = i + 1;
+        expression = exp.slice(0, i).trim();
+      } else {
+        pushFilter();
+      }
+    } else {
+      switch (c) {
+        case 0x22: inDouble = true; break         // "
+        case 0x27: inSingle = true; break         // '
+        case 0x60: inTemplateString = true; break // `
+        case 0x28: paren++; break                 // (
+        case 0x29: paren--; break                 // )
+        case 0x5B: square++; break                // [
+        case 0x5D: square--; break                // ]
+        case 0x7B: curly++; break                 // {
+        case 0x7D: curly--; break                 // }
+      }
+      if (c === 0x2f) { // /
+        var j = i - 1;
+        var p = (void 0);
+        // find first non-whitespace prev char
+        for (; j >= 0; j--) {
+          p = exp.charAt(j);
+          if (p !== ' ') { break }
+        }
+        if (!p || !validDivisionCharRE.test(p)) {
+          inRegex = true;
+        }
+      }
+    }
+  }
+
+  if (expression === undefined) {
+    expression = exp.slice(0, i).trim();
+  } else if (lastFilterIndex !== 0) {
+    pushFilter();
+  }
+
+  function pushFilter () {
+    (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
+    lastFilterIndex = i + 1;
+  }
+
+  if (filters) {
+    for (i = 0; i < filters.length; i++) {
+      expression = wrapFilter(expression, filters[i]);
+    }
+  }
+
+  return expression
+}
+
+function wrapFilter (exp, filter) {
+  var i = filter.indexOf('(');
+  if (i < 0) {
+    // _f: resolveFilter
+    return ("_f(\"" + filter + "\")(" + exp + ")")
+  } else {
+    var name = filter.slice(0, i);
+    var args = filter.slice(i + 1);
+    return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
+  }
+}
+
+/*  */
+
+function baseWarn (msg) {
+  console.error(("[Vue compiler]: " + msg));
+}
+
+function pluckModuleFunction (
+  modules,
+  key
+) {
+  return modules
+    ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
+    : []
+}
+
+function addProp (el, name, value) {
+  (el.props || (el.props = [])).push({ name: name, value: value });
+  el.plain = false;
+}
+
+function addAttr (el, name, value) {
+  (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+  el.plain = false;
+}
+
+// add a raw attr (use this in preTransforms)
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value;
+  el.attrsList.push({ name: name, value: value });
+}
+
+function addDirective (
+  el,
+  name,
+  rawName,
+  value,
+  arg,
+  modifiers
+) {
+  (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+  el.plain = false;
+}
+
+function addHandler (
+  el,
+  name,
+  value,
+  modifiers,
+  important,
+  warn
+) {
+  modifiers = modifiers || emptyObject;
+  // warn prevent and passive modifier
+  /* istanbul ignore if */
+  if (
+    "development" !== 'production' && warn &&
+    modifiers.prevent && modifiers.passive
+  ) {
+    warn(
+      'passive and prevent can\'t be used together. ' +
+      'Passive handler can\'t prevent default event.'
+    );
+  }
+
+  // check capture modifier
+  if (modifiers.capture) {
+    delete modifiers.capture;
+    name = '!' + name; // mark the event as captured
+  }
+  if (modifiers.once) {
+    delete modifiers.once;
+    name = '~' + name; // mark the event as once
+  }
+  /* istanbul ignore if */
+  if (modifiers.passive) {
+    delete modifiers.passive;
+    name = '&' + name; // mark the event as passive
+  }
+
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
+  var events;
+  if (modifiers.native) {
+    delete modifiers.native;
+    events = el.nativeEvents || (el.nativeEvents = {});
+  } else {
+    events = el.events || (el.events = {});
+  }
+
+  var newHandler = {
+    value: value.trim()
+  };
+  if (modifiers !== emptyObject) {
+    newHandler.modifiers = modifiers;
+  }
+
+  var handlers = events[name];
+  /* istanbul ignore if */
+  if (Array.isArray(handlers)) {
+    important ? handlers.unshift(newHandler) : handlers.push(newHandler);
+  } else if (handlers) {
+    events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
+  } else {
+    events[name] = newHandler;
+  }
+
+  el.plain = false;
+}
+
+function getBindingAttr (
+  el,
+  name,
+  getStatic
+) {
+  var dynamicValue =
+    getAndRemoveAttr(el, ':' + name) ||
+    getAndRemoveAttr(el, 'v-bind:' + name);
+  if (dynamicValue != null) {
+    return parseFilters(dynamicValue)
+  } else if (getStatic !== false) {
+    var staticValue = getAndRemoveAttr(el, name);
+    if (staticValue != null) {
+      return JSON.stringify(staticValue)
+    }
+  }
+}
+
+// note: this only removes the attr from the Array (attrsList) so that it
+// doesn't get processed by processAttrs.
+// By default it does NOT remove it from the map (attrsMap) because the map is
+// needed during codegen.
+function getAndRemoveAttr (
+  el,
+  name,
+  removeFromMap
+) {
+  var val;
+  if ((val = el.attrsMap[name]) != null) {
+    var list = el.attrsList;
+    for (var i = 0, l = list.length; i < l; i++) {
+      if (list[i].name === name) {
+        list.splice(i, 1);
+        break
+      }
+    }
+  }
+  if (removeFromMap) {
+    delete el.attrsMap[name];
+  }
+  return val
+}
+
+/*  */
+
+/**
+ * Cross-platform code generation for component v-model
+ */
+function genComponentModel (
+  el,
+  value,
+  modifiers
+) {
+  var ref = modifiers || {};
+  var number = ref.number;
+  var trim = ref.trim;
+
+  var baseValueExpression = '$$v';
+  var valueExpression = baseValueExpression;
+  if (trim) {
+    valueExpression =
+      "(typeof " + baseValueExpression + " === 'string'" +
+      "? " + baseValueExpression + ".trim()" +
+      ": " + baseValueExpression + ")";
+  }
+  if (number) {
+    valueExpression = "_n(" + valueExpression + ")";
+  }
+  var assignment = genAssignmentCode(value, valueExpression);
+
+  el.model = {
+    value: ("(" + value + ")"),
+    expression: ("\"" + value + "\""),
+    callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
+  };
+}
+
+/**
+ * Cross-platform codegen helper for generating v-model value assignment code.
+ */
+function genAssignmentCode (
+  value,
+  assignment
+) {
+  var res = parseModel(value);
+  if (res.key === null) {
+    return (value + "=" + assignment)
+  } else {
+    return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
+  }
+}
+
+/**
+ * Parse a v-model expression into a base path and a final key segment.
+ * Handles both dot-path and possible square brackets.
+ *
+ * Possible cases:
+ *
+ * - test
+ * - test[key]
+ * - test[test1[key]]
+ * - test["a"][key]
+ * - xxx.test[a[a].test1[key]]
+ * - test.xxx.a["asa"][test1[key]]
+ *
+ */
+
+var len;
+var str;
+var chr;
+var index$1;
+var expressionPos;
+var expressionEndPos;
+
+
+
+function parseModel (val) {
+  // Fix https://github.com/vuejs/vue/pull/7730
+  // allow v-model="obj.val " (trailing whitespace)
+  val = val.trim();
+  len = val.length;
+
+  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
+    index$1 = val.lastIndexOf('.');
+    if (index$1 > -1) {
+      return {
+        exp: val.slice(0, index$1),
+        key: '"' + val.slice(index$1 + 1) + '"'
+      }
+    } else {
+      return {
+        exp: val,
+        key: null
+      }
+    }
+  }
+
+  str = val;
+  index$1 = expressionPos = expressionEndPos = 0;
+
+  while (!eof()) {
+    chr = next();
+    /* istanbul ignore if */
+    if (isStringStart(chr)) {
+      parseString(chr);
+    } else if (chr === 0x5B) {
+      parseBracket(chr);
+    }
+  }
+
+  return {
+    exp: val.slice(0, expressionPos),
+    key: val.slice(expressionPos + 1, expressionEndPos)
+  }
+}
+
+function next () {
+  return str.charCodeAt(++index$1)
+}
+
+function eof () {
+  return index$1 >= len
+}
+
+function isStringStart (chr) {
+  return chr === 0x22 || chr === 0x27
+}
+
+function parseBracket (chr) {
+  var inBracket = 1;
+  expressionPos = index$1;
+  while (!eof()) {
+    chr = next();
+    if (isStringStart(chr)) {
+      parseString(chr);
+      continue
+    }
+    if (chr === 0x5B) { inBracket++; }
+    if (chr === 0x5D) { inBracket--; }
+    if (inBracket === 0) {
+      expressionEndPos = index$1;
+      break
+    }
+  }
+}
+
+function parseString (chr) {
+  var stringQuote = chr;
+  while (!eof()) {
+    chr = next();
+    if (chr === stringQuote) {
+      break
+    }
+  }
+}
+
+/*  */
+
+var warn$1;
+
+// in some cases, the event used has to be determined at runtime
+// so we used some reserved tokens during compile.
+var RANGE_TOKEN = '__r';
+var CHECKBOX_RADIO_TOKEN = '__c';
+
+function model (
+  el,
+  dir,
+  _warn
+) {
+  warn$1 = _warn;
+  var value = dir.value;
+  var modifiers = dir.modifiers;
+  var tag = el.tag;
+  var type = el.attrsMap.type;
+
+  {
+    // inputs with type="file" are read only and setting the input's
+    // value will throw an error.
+    if (tag === 'input' && type === 'file') {
+      warn$1(
+        "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
+        "File inputs are read only. Use a v-on:change listener instead."
+      );
+    }
+  }
+
+  if (el.component) {
+    genComponentModel(el, value, modifiers);
+    // component v-model doesn't need extra runtime
+    return false
+  } else if (tag === 'select') {
+    genSelect(el, value, modifiers);
+  } else if (tag === 'input' && type === 'checkbox') {
+    genCheckboxModel(el, value, modifiers);
+  } else if (tag === 'input' && type === 'radio') {
+    genRadioModel(el, value, modifiers);
+  } else if (tag === 'input' || tag === 'textarea') {
+    genDefaultModel(el, value, modifiers);
+  } else if (!config.isReservedTag(tag)) {
+    genComponentModel(el, value, modifiers);
+    // component v-model doesn't need extra runtime
+    return false
+  } else {
+    warn$1(
+      "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+      "v-model is not supported on this element type. " +
+      'If you are working with contenteditable, it\'s recommended to ' +
+      'wrap a library dedicated for that purpose inside a custom component.'
+    );
+  }
+
+  // ensure runtime directive metadata
+  return true
+}
+
+function genCheckboxModel (
+  el,
+  value,
+  modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var valueBinding = getBindingAttr(el, 'value') || 'null';
+  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
+  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
+  addProp(el, 'checked',
+    "Array.isArray(" + value + ")" +
+    "?_i(" + value + "," + valueBinding + ")>-1" + (
+      trueValueBinding === 'true'
+        ? (":(" + value + ")")
+        : (":_q(" + value + "," + trueValueBinding + ")")
+    )
+  );
+  addHandler(el, 'change',
+    "var $$a=" + value + "," +
+        '$$el=$event.target,' +
+        "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
+    'if(Array.isArray($$a)){' +
+      "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
+          '$$i=_i($$a,$$v);' +
+      "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
+      "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
+    "}else{" + (genAssignmentCode(value, '$$c')) + "}",
+    null, true
+  );
+}
+
+function genRadioModel (
+  el,
+  value,
+  modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var valueBinding = getBindingAttr(el, 'value') || 'null';
+  valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
+  addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
+  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
+}
+
+function genSelect (
+  el,
+  value,
+  modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var selectedVal = "Array.prototype.filter" +
+    ".call($event.target.options,function(o){return o.selected})" +
+    ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
+    "return " + (number ? '_n(val)' : 'val') + "})";
+
+  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
+  var code = "var $$selectedVal = " + selectedVal + ";";
+  code = code + " " + (genAssignmentCode(value, assignment));
+  addHandler(el, 'change', code, null, true);
+}
+
+function genDefaultModel (
+  el,
+  value,
+  modifiers
+) {
+  var type = el.attrsMap.type;
+
+  // warn if v-bind:value conflicts with v-model
+  // except for inputs with v-bind:type
+  {
+    var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
+    var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
+    if (value$1 && !typeBinding) {
+      var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$1(
+        binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
+        'because the latter already expands to a value binding internally'
+      );
+    }
+  }
+
+  var ref = modifiers || {};
+  var lazy = ref.lazy;
+  var number = ref.number;
+  var trim = ref.trim;
+  var needCompositionGuard = !lazy && type !== 'range';
+  var event = lazy
+    ? 'change'
+    : type === 'range'
+      ? RANGE_TOKEN
+      : 'input';
+
+  var valueExpression = '$event.target.value';
+  if (trim) {
+    valueExpression = "$event.target.value.trim()";
+  }
+  if (number) {
+    valueExpression = "_n(" + valueExpression + ")";
+  }
+
+  var code = genAssignmentCode(value, valueExpression);
+  if (needCompositionGuard) {
+    code = "if($event.target.composing)return;" + code;
+  }
+
+  addProp(el, 'value', ("(" + value + ")"));
+  addHandler(el, event, code, null, true);
+  if (trim || number) {
+    addHandler(el, 'blur', '$forceUpdate()');
+  }
+}
+
+/*  */
+
+// normalize v-model event tokens that can only be determined at runtime.
+// it's important to place the event as the first in the array because
+// the whole point is ensuring the v-model callback gets called before
+// user-attached handlers.
+function normalizeEvents (on) {
+  /* istanbul ignore if */
+  if (isDef(on[RANGE_TOKEN])) {
+    // IE input[type=range] only supports `change` event
+    var event = isIE ? 'change' : 'input';
+    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
+    delete on[RANGE_TOKEN];
+  }
+  // This was originally intended to fix #4521 but no longer necessary
+  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
+  /* istanbul ignore if */
+  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
+    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
+    delete on[CHECKBOX_RADIO_TOKEN];
+  }
+}
+
+var target$1;
+
+function createOnceHandler (handler, event, capture) {
+  var _target = target$1; // save current target element in closure
+  return function onceHandler () {
+    var res = handler.apply(null, arguments);
+    if (res !== null) {
+      remove$2(event, onceHandler, capture, _target);
+    }
+  }
+}
+
+function add$1 (
+  event,
+  handler,
+  once$$1,
+  capture,
+  passive
+) {
+  handler = withMacroTask(handler);
+  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
+  target$1.addEventListener(
+    event,
+    handler,
+    supportsPassive
+      ? { capture: capture, passive: passive }
+      : capture
+  );
+}
+
+function remove$2 (
+  event,
+  handler,
+  capture,
+  _target
+) {
+  (_target || target$1).removeEventListener(
+    event,
+    handler._withTask || handler,
+    capture
+  );
+}
+
+function updateDOMListeners (oldVnode, vnode) {
+  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
+    return
+  }
+  var on = vnode.data.on || {};
+  var oldOn = oldVnode.data.on || {};
+  target$1 = vnode.elm;
+  normalizeEvents(on);
+  updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  target$1 = undefined;
+}
+
+var events = {
+  create: updateDOMListeners,
+  update: updateDOMListeners
+}
+
+/*  */
+
+function updateDOMProps (oldVnode, vnode) {
+  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
+    return
+  }
+  var key, cur;
+  var elm = vnode.elm;
+  var oldProps = oldVnode.data.domProps || {};
+  var props = vnode.data.domProps || {};
+  // clone observed objects, as the user probably wants to mutate it
+  if (isDef(props.__ob__)) {
+    props = vnode.data.domProps = extend({}, props);
+  }
+
+  for (key in oldProps) {
+    if (isUndef(props[key])) {
+      elm[key] = '';
+    }
+  }
+  for (key in props) {
+    cur = props[key];
+    // ignore children if the node has textContent or innerHTML,
+    // as these will throw away existing DOM nodes and cause removal errors
+    // on subsequent patches (#3360)
+    if (key === 'textContent' || key === 'innerHTML') {
+      if (vnode.children) { vnode.children.length = 0; }
+      if (cur === oldProps[key]) { continue }
+      // #6601 work around Chrome version <= 55 bug where single textNode
+      // replaced by innerHTML/textContent retains its parentNode property
+      if (elm.childNodes.length === 1) {
+        elm.removeChild(elm.childNodes[0]);
+      }
+    }
+
+    if (key === 'value') {
+      // store value as _value as well since
+      // non-string values will be stringified
+      elm._value = cur;
+      // avoid resetting cursor position when value is the same
+      var strCur = isUndef(cur) ? '' : String(cur);
+      if (shouldUpdateValue(elm, strCur)) {
+        elm.value = strCur;
+      }
+    } else {
+      elm[key] = cur;
+    }
+  }
+}
+
+// check platforms/web/util/attrs.js acceptValue
+
+
+function shouldUpdateValue (elm, checkVal) {
+  return (!elm.composing && (
+    elm.tagName === 'OPTION' ||
+    isNotInFocusAndDirty(elm, checkVal) ||
+    isDirtyWithModifiers(elm, checkVal)
+  ))
+}
+
+function isNotInFocusAndDirty (elm, checkVal) {
+  // return true when textbox (.number and .trim) loses focus and its value is
+  // not equal to the updated value
+  var notInFocus = true;
+  // #6157
+  // work around IE bug when accessing document.activeElement in an iframe
+  try { notInFocus = document.activeElement !== elm; } catch (e) {}
+  return notInFocus && elm.value !== checkVal
+}
+
+function isDirtyWithModifiers (elm, newVal) {
+  var value = elm.value;
+  var modifiers = elm._vModifiers; // injected by v-model runtime
+  if (isDef(modifiers)) {
+    if (modifiers.lazy) {
+      // inputs with lazy should only be updated when not in focus
+      return false
+    }
+    if (modifiers.number) {
+      return toNumber(value) !== toNumber(newVal)
+    }
+    if (modifiers.trim) {
+      return value.trim() !== newVal.trim()
+    }
+  }
+  return value !== newVal
+}
+
+var domProps = {
+  create: updateDOMProps,
+  update: updateDOMProps
+}
+
+/*  */
+
+var parseStyleText = cached(function (cssText) {
+  var res = {};
+  var listDelimiter = /;(?![^(]*\))/g;
+  var propertyDelimiter = /:(.+)/;
+  cssText.split(listDelimiter).forEach(function (item) {
+    if (item) {
+      var tmp = item.split(propertyDelimiter);
+      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
+    }
+  });
+  return res
+});
+
+// merge static and dynamic style data on the same vnode
+function normalizeStyleData (data) {
+  var style = normalizeStyleBinding(data.style);
+  // static style is pre-processed into an object during compilation
+  // and is always a fresh object, so it's safe to merge into it
+  return data.staticStyle
+    ? extend(data.staticStyle, style)
+    : style
+}
+
+// normalize possible array / string values into Object
+function normalizeStyleBinding (bindingStyle) {
+  if (Array.isArray(bindingStyle)) {
+    return toObject(bindingStyle)
+  }
+  if (typeof bindingStyle === 'string') {
+    return parseStyleText(bindingStyle)
+  }
+  return bindingStyle
+}
+
+/**
+ * parent component style should be after child's
+ * so that parent component's style could override it
+ */
+function getStyle (vnode, checkChild) {
+  var res = {};
+  var styleData;
+
+  if (checkChild) {
+    var childNode = vnode;
+    while (childNode.componentInstance) {
+      childNode = childNode.componentInstance._vnode;
+      if (
+        childNode && childNode.data &&
+        (styleData = normalizeStyleData(childNode.data))
+      ) {
+        extend(res, styleData);
+      }
+    }
+  }
+
+  if ((styleData = normalizeStyleData(vnode.data))) {
+    extend(res, styleData);
+  }
+
+  var parentNode = vnode;
+  while ((parentNode = parentNode.parent)) {
+    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
+      extend(res, styleData);
+    }
+  }
+  return res
+}
+
+/*  */
+
+var cssVarRE = /^--/;
+var importantRE = /\s*!important$/;
+var setProp = function (el, name, val) {
+  /* istanbul ignore if */
+  if (cssVarRE.test(name)) {
+    el.style.setProperty(name, val);
+  } else if (importantRE.test(val)) {
+    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
+  } else {
+    var normalizedName = normalize(name);
+    if (Array.isArray(val)) {
+      // Support values array created by autoprefixer, e.g.
+      // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
+      // Set them one by one, and the browser will only set those it can recognize
+      for (var i = 0, len = val.length; i < len; i++) {
+        el.style[normalizedName] = val[i];
+      }
+    } else {
+      el.style[normalizedName] = val;
+    }
+  }
+};
+
+var vendorNames = ['Webkit', 'Moz', 'ms'];
+
+var emptyStyle;
+var normalize = cached(function (prop) {
+  emptyStyle = emptyStyle || document.createElement('div').style;
+  prop = camelize(prop);
+  if (prop !== 'filter' && (prop in emptyStyle)) {
+    return prop
+  }
+  var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
+  for (var i = 0; i < vendorNames.length; i++) {
+    var name = vendorNames[i] + capName;
+    if (name in emptyStyle) {
+      return name
+    }
+  }
+});
+
+function updateStyle (oldVnode, vnode) {
+  var data = vnode.data;
+  var oldData = oldVnode.data;
+
+  if (isUndef(data.staticStyle) && isUndef(data.style) &&
+    isUndef(oldData.staticStyle) && isUndef(oldData.style)
+  ) {
+    return
+  }
+
+  var cur, name;
+  var el = vnode.elm;
+  var oldStaticStyle = oldData.staticStyle;
+  var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
+
+  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
+  var oldStyle = oldStaticStyle || oldStyleBinding;
+
+  var style = normalizeStyleBinding(vnode.data.style) || {};
+
+  // store normalized style under a different key for next diff
+  // make sure to clone it if it's reactive, since the user likely wants
+  // to mutate it.
+  vnode.data.normalizedStyle = isDef(style.__ob__)
+    ? extend({}, style)
+    : style;
+
+  var newStyle = getStyle(vnode, true);
+
+  for (name in oldStyle) {
+    if (isUndef(newStyle[name])) {
+      setProp(el, name, '');
+    }
+  }
+  for (name in newStyle) {
+    cur = newStyle[name];
+    if (cur !== oldStyle[name]) {
+      // ie9 setting to null has no effect, must use empty string
+      setProp(el, name, cur == null ? '' : cur);
+    }
+  }
+}
+
+var style = {
+  create: updateStyle,
+  update: updateStyle
+}
+
+/*  */
+
+/**
+ * Add class with compatibility for SVG since classList is not supported on
+ * SVG elements in IE
+ */
+function addClass (el, cls) {
+  /* istanbul ignore if */
+  if (!cls || !(cls = cls.trim())) {
+    return
+  }
+
+  /* istanbul ignore else */
+  if (el.classList) {
+    if (cls.indexOf(' ') > -1) {
+      cls.split(/\s+/).forEach(function (c) { return el.classList.add(c); });
+    } else {
+      el.classList.add(cls);
+    }
+  } else {
+    var cur = " " + (el.getAttribute('class') || '') + " ";
+    if (cur.indexOf(' ' + cls + ' ') < 0) {
+      el.setAttribute('class', (cur + cls).trim());
+    }
+  }
+}
+
+/**
+ * Remove class with compatibility for SVG since classList is not supported on
+ * SVG elements in IE
+ */
+function removeClass (el, cls) {
+  /* istanbul ignore if */
+  if (!cls || !(cls = cls.trim())) {
+    return
+  }
+
+  /* istanbul ignore else */
+  if (el.classList) {
+    if (cls.indexOf(' ') > -1) {
+      cls.split(/\s+/).forEach(function (c) { return el.classList.remove(c); });
+    } else {
+      el.classList.remove(cls);
+    }
+    if (!el.classList.length) {
+      el.removeAttribute('class');
+    }
+  } else {
+    var cur = " " + (el.getAttribute('class') || '') + " ";
+    var tar = ' ' + cls + ' ';
+    while (cur.indexOf(tar) >= 0) {
+      cur = cur.replace(tar, ' ');
+    }
+    cur = cur.trim();
+    if (cur) {
+      el.setAttribute('class', cur);
+    } else {
+      el.removeAttribute('class');
+    }
+  }
+}
+
+/*  */
+
+function resolveTransition (def) {
+  if (!def) {
+    return
+  }
+  /* istanbul ignore else */
+  if (typeof def === 'object') {
+    var res = {};
+    if (def.css !== false) {
+      extend(res, autoCssTransition(def.name || 'v'));
+    }
+    extend(res, def);
+    return res
+  } else if (typeof def === 'string') {
+    return autoCssTransition(def)
+  }
+}
+
+var autoCssTransition = cached(function (name) {
+  return {
+    enterClass: (name + "-enter"),
+    enterToClass: (name + "-enter-to"),
+    enterActiveClass: (name + "-enter-active"),
+    leaveClass: (name + "-leave"),
+    leaveToClass: (name + "-leave-to"),
+    leaveActiveClass: (name + "-leave-active")
+  }
+});
+
+var hasTransition = inBrowser && !isIE9;
+var TRANSITION = 'transition';
+var ANIMATION = 'animation';
+
+// Transition property/event sniffing
+var transitionProp = 'transition';
+var transitionEndEvent = 'transitionend';
+var animationProp = 'animation';
+var animationEndEvent = 'animationend';
+if (hasTransition) {
+  /* istanbul ignore if */
+  if (window.ontransitionend === undefined &&
+    window.onwebkittransitionend !== undefined
+  ) {
+    transitionProp = 'WebkitTransition';
+    transitionEndEvent = 'webkitTransitionEnd';
+  }
+  if (window.onanimationend === undefined &&
+    window.onwebkitanimationend !== undefined
+  ) {
+    animationProp = 'WebkitAnimation';
+    animationEndEvent = 'webkitAnimationEnd';
+  }
+}
+
+// binding to window is necessary to make hot reload work in IE in strict mode
+var raf = inBrowser
+  ? window.requestAnimationFrame
+    ? window.requestAnimationFrame.bind(window)
+    : setTimeout
+  : /* istanbul ignore next */ function (fn) { return fn(); };
+
+function nextFrame (fn) {
+  raf(function () {
+    raf(fn);
+  });
+}
+
+function addTransitionClass (el, cls) {
+  var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
+  if (transitionClasses.indexOf(cls) < 0) {
+    transitionClasses.push(cls);
+    addClass(el, cls);
+  }
+}
+
+function removeTransitionClass (el, cls) {
+  if (el._transitionClasses) {
+    remove(el._transitionClasses, cls);
+  }
+  removeClass(el, cls);
+}
+
+function whenTransitionEnds (
+  el,
+  expectedType,
+  cb
+) {
+  var ref = getTransitionInfo(el, expectedType);
+  var type = ref.type;
+  var timeout = ref.timeout;
+  var propCount = ref.propCount;
+  if (!type) { return cb() }
+  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
+  var ended = 0;
+  var end = function () {
+    el.removeEventListener(event, onEnd);
+    cb();
+  };
+  var onEnd = function (e) {
+    if (e.target === el) {
+      if (++ended >= propCount) {
+        end();
+      }
+    }
+  };
+  setTimeout(function () {
+    if (ended < propCount) {
+      end();
+    }
+  }, timeout + 1);
+  el.addEventListener(event, onEnd);
+}
+
+var transformRE = /\b(transform|all)(,|$)/;
+
+function getTransitionInfo (el, expectedType) {
+  var styles = window.getComputedStyle(el);
+  var transitionDelays = styles[transitionProp + 'Delay'].split(', ');
+  var transitionDurations = styles[transitionProp + 'Duration'].split(', ');
+  var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
+  var animationDelays = styles[animationProp + 'Delay'].split(', ');
+  var animationDurations = styles[animationProp + 'Duration'].split(', ');
+  var animationTimeout = getTimeout(animationDelays, animationDurations);
+
+  var type;
+  var timeout = 0;
+  var propCount = 0;
+  /* istanbul ignore if */
+  if (expectedType === TRANSITION) {
+    if (transitionTimeout > 0) {
+      type = TRANSITION;
+      timeout = transitionTimeout;
+      propCount = transitionDurations.length;
+    }
+  } else if (expectedType === ANIMATION) {
+    if (animationTimeout > 0) {
+      type = ANIMATION;
+      timeout = animationTimeout;
+      propCount = animationDurations.length;
+    }
+  } else {
+    timeout = Math.max(transitionTimeout, animationTimeout);
+    type = timeout > 0
+      ? transitionTimeout > animationTimeout
+        ? TRANSITION
+        : ANIMATION
+      : null;
+    propCount = type
+      ? type === TRANSITION
+        ? transitionDurations.length
+        : animationDurations.length
+      : 0;
+  }
+  var hasTransform =
+    type === TRANSITION &&
+    transformRE.test(styles[transitionProp + 'Property']);
+  return {
+    type: type,
+    timeout: timeout,
+    propCount: propCount,
+    hasTransform: hasTransform
+  }
+}
+
+function getTimeout (delays, durations) {
+  /* istanbul ignore next */
+  while (delays.length < durations.length) {
+    delays = delays.concat(delays);
+  }
+
+  return Math.max.apply(null, durations.map(function (d, i) {
+    return toMs(d) + toMs(delays[i])
+  }))
+}
+
+function toMs (s) {
+  return Number(s.slice(0, -1)) * 1000
+}
+
+/*  */
+
+function enter (vnode, toggleDisplay) {
+  var el = vnode.elm;
+
+  // call leave callback now
+  if (isDef(el._leaveCb)) {
+    el._leaveCb.cancelled = true;
+    el._leaveCb();
+  }
+
+  var data = resolveTransition(vnode.data.transition);
+  if (isUndef(data)) {
+    return
+  }
+
+  /* istanbul ignore if */
+  if (isDef(el._enterCb) || el.nodeType !== 1) {
+    return
+  }
+
+  var css = data.css;
+  var type = data.type;
+  var enterClass = data.enterClass;
+  var enterToClass = data.enterToClass;
+  var enterActiveClass = data.enterActiveClass;
+  var appearClass = data.appearClass;
+  var appearToClass = data.appearToClass;
+  var appearActiveClass = data.appearActiveClass;
+  var beforeEnter = data.beforeEnter;
+  var enter = data.enter;
+  var afterEnter = data.afterEnter;
+  var enterCancelled = data.enterCancelled;
+  var beforeAppear = data.beforeAppear;
+  var appear = data.appear;
+  var afterAppear = data.afterAppear;
+  var appearCancelled = data.appearCancelled;
+  var duration = data.duration;
+
+  // activeInstance will always be the <transition> component managing this
+  // transition. One edge case to check is when the <transition> is placed
+  // as the root node of a child component. In that case we need to check
+  // <transition>'s parent for appear check.
+  var context = activeInstance;
+  var transitionNode = activeInstance.$vnode;
+  while (transitionNode && transitionNode.parent) {
+    transitionNode = transitionNode.parent;
+    context = transitionNode.context;
+  }
+
+  var isAppear = !context._isMounted || !vnode.isRootInsert;
+
+  if (isAppear && !appear && appear !== '') {
+    return
+  }
+
+  var startClass = isAppear && appearClass
+    ? appearClass
+    : enterClass;
+  var activeClass = isAppear && appearActiveClass
+    ? appearActiveClass
+    : enterActiveClass;
+  var toClass = isAppear && appearToClass
+    ? appearToClass
+    : enterToClass;
+
+  var beforeEnterHook = isAppear
+    ? (beforeAppear || beforeEnter)
+    : beforeEnter;
+  var enterHook = isAppear
+    ? (typeof appear === 'function' ? appear : enter)
+    : enter;
+  var afterEnterHook = isAppear
+    ? (afterAppear || afterEnter)
+    : afterEnter;
+  var enterCancelledHook = isAppear
+    ? (appearCancelled || enterCancelled)
+    : enterCancelled;
+
+  var explicitEnterDuration = toNumber(
+    isObject(duration)
+      ? duration.enter
+      : duration
+  );
+
+  if ("development" !== 'production' && explicitEnterDuration != null) {
+    checkDuration(explicitEnterDuration, 'enter', vnode);
+  }
+
+  var expectsCSS = css !== false && !isIE9;
+  var userWantsControl = getHookArgumentsLength(enterHook);
+
+  var cb = el._enterCb = once(function () {
+    if (expectsCSS) {
+      removeTransitionClass(el, toClass);
+      removeTransitionClass(el, activeClass);
+    }
+    if (cb.cancelled) {
+      if (expectsCSS) {
+        removeTransitionClass(el, startClass);
+      }
+      enterCancelledHook && enterCancelledHook(el);
+    } else {
+      afterEnterHook && afterEnterHook(el);
+    }
+    el._enterCb = null;
+  });
+
+  if (!vnode.data.show) {
+    // remove pending leave element on enter by injecting an insert hook
+    mergeVNodeHook(vnode, 'insert', function () {
+      var parent = el.parentNode;
+      var pendingNode = parent && parent._pending && parent._pending[vnode.key];
+      if (pendingNode &&
+        pendingNode.tag === vnode.tag &&
+        pendingNode.elm._leaveCb
+      ) {
+        pendingNode.elm._leaveCb();
+      }
+      enterHook && enterHook(el, cb);
+    });
+  }
+
+  // start enter transition
+  beforeEnterHook && beforeEnterHook(el);
+  if (expectsCSS) {
+    addTransitionClass(el, startClass);
+    addTransitionClass(el, activeClass);
+    nextFrame(function () {
+      removeTransitionClass(el, startClass);
+      if (!cb.cancelled) {
+        addTransitionClass(el, toClass);
+        if (!userWantsControl) {
+          if (isValidDuration(explicitEnterDuration)) {
+            setTimeout(cb, explicitEnterDuration);
+          } else {
+            whenTransitionEnds(el, type, cb);
+          }
+        }
+      }
+    });
+  }
+
+  if (vnode.data.show) {
+    toggleDisplay && toggleDisplay();
+    enterHook && enterHook(el, cb);
+  }
+
+  if (!expectsCSS && !userWantsControl) {
+    cb();
+  }
+}
+
+function leave (vnode, rm) {
+  var el = vnode.elm;
+
+  // call enter callback now
+  if (isDef(el._enterCb)) {
+    el._enterCb.cancelled = true;
+    el._enterCb();
+  }
+
+  var data = resolveTransition(vnode.data.transition);
+  if (isUndef(data) || el.nodeType !== 1) {
+    return rm()
+  }
+
+  /* istanbul ignore if */
+  if (isDef(el._leaveCb)) {
+    return
+  }
+
+  var css = data.css;
+  var type = data.type;
+  var leaveClass = data.leaveClass;
+  var leaveToClass = data.leaveToClass;
+  var leaveActiveClass = data.leaveActiveClass;
+  var beforeLeave = data.beforeLeave;
+  var leave = data.leave;
+  var afterLeave = data.afterLeave;
+  var leaveCancelled = data.leaveCancelled;
+  var delayLeave = data.delayLeave;
+  var duration = data.duration;
+
+  var expectsCSS = css !== false && !isIE9;
+  var userWantsControl = getHookArgumentsLength(leave);
+
+  var explicitLeaveDuration = toNumber(
+    isObject(duration)
+      ? duration.leave
+      : duration
+  );
+
+  if ("development" !== 'production' && isDef(explicitLeaveDuration)) {
+    checkDuration(explicitLeaveDuration, 'leave', vnode);
+  }
+
+  var cb = el._leaveCb = once(function () {
+    if (el.parentNode && el.parentNode._pending) {
+      el.parentNode._pending[vnode.key] = null;
+    }
+    if (expectsCSS) {
+      removeTransitionClass(el, leaveToClass);
+      removeTransitionClass(el, leaveActiveClass);
+    }
+    if (cb.cancelled) {
+      if (expectsCSS) {
+        removeTransitionClass(el, leaveClass);
+      }
+      leaveCancelled && leaveCancelled(el);
+    } else {
+      rm();
+      afterLeave && afterLeave(el);
+    }
+    el._leaveCb = null;
+  });
+
+  if (delayLeave) {
+    delayLeave(performLeave);
+  } else {
+    performLeave();
+  }
+
+  function performLeave () {
+    // the delayed leave may have already been cancelled
+    if (cb.cancelled) {
+      return
+    }
+    // record leaving element
+    if (!vnode.data.show) {
+      (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
+    }
+    beforeLeave && beforeLeave(el);
+    if (expectsCSS) {
+      addTransitionClass(el, leaveClass);
+      addTransitionClass(el, leaveActiveClass);
+      nextFrame(function () {
+        removeTransitionClass(el, leaveClass);
+        if (!cb.cancelled) {
+          addTransitionClass(el, leaveToClass);
+          if (!userWantsControl) {
+            if (isValidDuration(explicitLeaveDuration)) {
+              setTimeout(cb, explicitLeaveDuration);
+            } else {
+              whenTransitionEnds(el, type, cb);
+            }
+          }
+        }
+      });
+    }
+    leave && leave(el, cb);
+    if (!expectsCSS && !userWantsControl) {
+      cb();
+    }
+  }
+}
+
+// only used in dev mode
+function checkDuration (val, name, vnode) {
+  if (typeof val !== 'number') {
+    warn(
+      "<transition> explicit " + name + " duration is not a valid number - " +
+      "got " + (JSON.stringify(val)) + ".",
+      vnode.context
+    );
+  } else if (isNaN(val)) {
+    warn(
+      "<transition> explicit " + name + " duration is NaN - " +
+      'the duration expression might be incorrect.',
+      vnode.context
+    );
+  }
+}
+
+function isValidDuration (val) {
+  return typeof val === 'number' && !isNaN(val)
+}
+
+/**
+ * Normalize a transition hook's argument length. The hook may be:
+ * - a merged hook (invoker) with the original in .fns
+ * - a wrapped component method (check ._length)
+ * - a plain function (.length)
+ */
+function getHookArgumentsLength (fn) {
+  if (isUndef(fn)) {
+    return false
+  }
+  var invokerFns = fn.fns;
+  if (isDef(invokerFns)) {
+    // invoker
+    return getHookArgumentsLength(
+      Array.isArray(invokerFns)
+        ? invokerFns[0]
+        : invokerFns
+    )
+  } else {
+    return (fn._length || fn.length) > 1
+  }
+}
+
+function _enter (_, vnode) {
+  if (vnode.data.show !== true) {
+    enter(vnode);
+  }
+}
+
+var transition = inBrowser ? {
+  create: _enter,
+  activate: _enter,
+  remove: function remove$$1 (vnode, rm) {
+    /* istanbul ignore else */
+    if (vnode.data.show !== true) {
+      leave(vnode, rm);
+    } else {
+      rm();
+    }
+  }
+} : {}
+
+var platformModules = [
+  attrs,
+  klass,
+  events,
+  domProps,
+  style,
+  transition
+]
+
+/*  */
+
+// the directive module should be applied last, after all
+// built-in modules have been applied.
+var modules = platformModules.concat(baseModules);
+
+var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
+
+/**
+ * Not type checking this file because flow doesn't like attaching
+ * properties to Elements.
+ */
+
+/* istanbul ignore if */
+if (isIE9) {
+  // http://www.matts411.com/post/internet-explorer-9-oninput/
+  document.addEventListener('selectionchange', function () {
+    var el = document.activeElement;
+    if (el && el.vmodel) {
+      trigger(el, 'input');
+    }
+  });
+}
+
+var directive = {
+  inserted: function inserted (el, binding, vnode, oldVnode) {
+    if (vnode.tag === 'select') {
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', function () {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
+      el._vOptions = [].map.call(el.options, getValue);
+    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
+      el._vModifiers = binding.modifiers;
+      if (!binding.modifiers.lazy) {
+        el.addEventListener('compositionstart', onCompositionStart);
+        el.addEventListener('compositionend', onCompositionEnd);
+        // Safari < 10.2 & UIWebView doesn't fire compositionend when
+        // switching focus before confirming composition choice
+        // this also fixes the issue where some browsers e.g. iOS Chrome
+        // fires "change" instead of "input" on autocomplete.
+        el.addEventListener('change', onCompositionEnd);
+        /* istanbul ignore if */
+        if (isIE9) {
+          el.vmodel = true;
+        }
+      }
+    }
+  },
+
+  componentUpdated: function componentUpdated (el, binding, vnode) {
+    if (vnode.tag === 'select') {
+      setSelected(el, binding, vnode.context);
+      // in case the options rendered by v-for have changed,
+      // it's possible that the value is out-of-sync with the rendered options.
+      // detect such cases and filter out values that no longer has a matching
+      // option in the DOM.
+      var prevOptions = el._vOptions;
+      var curOptions = el._vOptions = [].map.call(el.options, getValue);
+      if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
+        // trigger change event if
+        // no matching option found for at least one value
+        var needReset = el.multiple
+          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
+          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
+        if (needReset) {
+          trigger(el, 'change');
+        }
+      }
+    }
+  }
+};
+
+function setSelected (el, binding, vm) {
+  actuallySetSelected(el, binding, vm);
+  /* istanbul ignore if */
+  if (isIE || isEdge) {
+    setTimeout(function () {
+      actuallySetSelected(el, binding, vm);
+    }, 0);
+  }
+}
+
+function actuallySetSelected (el, binding, vm) {
+  var value = binding.value;
+  var isMultiple = el.multiple;
+  if (isMultiple && !Array.isArray(value)) {
+    "development" !== 'production' && warn(
+      "<select multiple v-model=\"" + (binding.expression) + "\"> " +
+      "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
+      vm
+    );
+    return
+  }
+  var selected, option;
+  for (var i = 0, l = el.options.length; i < l; i++) {
+    option = el.options[i];
+    if (isMultiple) {
+      selected = looseIndexOf(value, getValue(option)) > -1;
+      if (option.selected !== selected) {
+        option.selected = selected;
+      }
+    } else {
+      if (looseEqual(getValue(option), value)) {
+        if (el.selectedIndex !== i) {
+          el.selectedIndex = i;
+        }
+        return
+      }
+    }
+  }
+  if (!isMultiple) {
+    el.selectedIndex = -1;
+  }
+}
+
+function hasNoMatchingOption (value, options) {
+  return options.every(function (o) { return !looseEqual(o, value); })
+}
+
+function getValue (option) {
+  return '_value' in option
+    ? option._value
+    : option.value
+}
+
+function onCompositionStart (e) {
+  e.target.composing = true;
+}
+
+function onCompositionEnd (e) {
+  // prevent triggering an input event for no reason
+  if (!e.target.composing) { return }
+  e.target.composing = false;
+  trigger(e.target, 'input');
+}
+
+function trigger (el, type) {
+  var e = document.createEvent('HTMLEvents');
+  e.initEvent(type, true, true);
+  el.dispatchEvent(e);
+}
+
+/*  */
+
+// recursively search for possible transition defined inside the component root
+function locateNode (vnode) {
+  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
+    ? locateNode(vnode.componentInstance._vnode)
+    : vnode
+}
+
+var show = {
+  bind: function bind (el, ref, vnode) {
+    var value = ref.value;
+
+    vnode = locateNode(vnode);
+    var transition$$1 = vnode.data && vnode.data.transition;
+    var originalDisplay = el.__vOriginalDisplay =
+      el.style.display === 'none' ? '' : el.style.display;
+    if (value && transition$$1) {
+      vnode.data.show = true;
+      enter(vnode, function () {
+        el.style.display = originalDisplay;
+      });
+    } else {
+      el.style.display = value ? originalDisplay : 'none';
+    }
+  },
+
+  update: function update (el, ref, vnode) {
+    var value = ref.value;
+    var oldValue = ref.oldValue;
+
+    /* istanbul ignore if */
+    if (!value === !oldValue) { return }
+    vnode = locateNode(vnode);
+    var transition$$1 = vnode.data && vnode.data.transition;
+    if (transition$$1) {
+      vnode.data.show = true;
+      if (value) {
+        enter(vnode, function () {
+          el.style.display = el.__vOriginalDisplay;
+        });
+      } else {
+        leave(vnode, function () {
+          el.style.display = 'none';
+        });
+      }
+    } else {
+      el.style.display = value ? el.__vOriginalDisplay : 'none';
+    }
+  },
+
+  unbind: function unbind (
+    el,
+    binding,
+    vnode,
+    oldVnode,
+    isDestroy
+  ) {
+    if (!isDestroy) {
+      el.style.display = el.__vOriginalDisplay;
+    }
+  }
+}
+
+var platformDirectives = {
+  model: directive,
+  show: show
+}
+
+/*  */
+
+// Provides transition support for a single element/component.
+// supports transition mode (out-in / in-out)
+
+var transitionProps = {
+  name: String,
+  appear: Boolean,
+  css: Boolean,
+  mode: String,
+  type: String,
+  enterClass: String,
+  leaveClass: String,
+  enterToClass: String,
+  leaveToClass: String,
+  enterActiveClass: String,
+  leaveActiveClass: String,
+  appearClass: String,
+  appearActiveClass: String,
+  appearToClass: String,
+  duration: [Number, String, Object]
+};
+
+// in case the child is also an abstract component, e.g. <keep-alive>
+// we want to recursively retrieve the real component to be rendered
+function getRealChild (vnode) {
+  var compOptions = vnode && vnode.componentOptions;
+  if (compOptions && compOptions.Ctor.options.abstract) {
+    return getRealChild(getFirstComponentChild(compOptions.children))
+  } else {
+    return vnode
+  }
+}
+
+function extractTransitionData (comp) {
+  var data = {};
+  var options = comp.$options;
+  // props
+  for (var key in options.propsData) {
+    data[key] = comp[key];
+  }
+  // events.
+  // extract listeners and pass them directly to the transition methods
+  var listeners = options._parentListeners;
+  for (var key$1 in listeners) {
+    data[camelize(key$1)] = listeners[key$1];
+  }
+  return data
+}
+
+function placeholder (h, rawChild) {
+  if (/\d-keep-alive$/.test(rawChild.tag)) {
+    return h('keep-alive', {
+      props: rawChild.componentOptions.propsData
+    })
+  }
+}
+
+function hasParentTransition (vnode) {
+  while ((vnode = vnode.parent)) {
+    if (vnode.data.transition) {
+      return true
+    }
+  }
+}
+
+function isSameChild (child, oldChild) {
+  return oldChild.key === child.key && oldChild.tag === child.tag
+}
+
+var Transition = {
+  name: 'transition',
+  props: transitionProps,
+  abstract: true,
+
+  render: function render (h) {
+    var this$1 = this;
+
+    var children = this.$slots.default;
+    if (!children) {
+      return
+    }
+
+    // filter out text nodes (possible whitespaces)
+    children = children.filter(function (c) { return c.tag || isAsyncPlaceholder(c); });
+    /* istanbul ignore if */
+    if (!children.length) {
+      return
+    }
+
+    // warn multiple elements
+    if ("development" !== 'production' && children.length > 1) {
+      warn(
+        '<transition> can only be used on a single element. Use ' +
+        '<transition-group> for lists.',
+        this.$parent
+      );
+    }
+
+    var mode = this.mode;
+
+    // warn invalid mode
+    if ("development" !== 'production' &&
+      mode && mode !== 'in-out' && mode !== 'out-in'
+    ) {
+      warn(
+        'invalid <transition> mode: ' + mode,
+        this.$parent
+      );
+    }
+
+    var rawChild = children[0];
+
+    // if this is a component root node and the component's
+    // parent container node also has transition, skip.
+    if (hasParentTransition(this.$vnode)) {
+      return rawChild
+    }
+
+    // apply transition data to child
+    // use getRealChild() to ignore abstract components e.g. keep-alive
+    var child = getRealChild(rawChild);
+    /* istanbul ignore if */
+    if (!child) {
+      return rawChild
+    }
+
+    if (this._leaving) {
+      return placeholder(h, rawChild)
+    }
+
+    // ensure a key that is unique to the vnode type and to this transition
+    // component instance. This key will be used to remove pending leaving nodes
+    // during entering.
+    var id = "__transition-" + (this._uid) + "-";
+    child.key = child.key == null
+      ? child.isComment
+        ? id + 'comment'
+        : id + child.tag
+      : isPrimitive(child.key)
+        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
+        : child.key;
+
+    var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
+    var oldRawChild = this._vnode;
+    var oldChild = getRealChild(oldRawChild);
+
+    // mark v-show
+    // so that the transition module can hand over the control to the directive
+    if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) {
+      child.data.show = true;
+    }
+
+    if (
+      oldChild &&
+      oldChild.data &&
+      !isSameChild(child, oldChild) &&
+      !isAsyncPlaceholder(oldChild) &&
+      // #6687 component root is a comment node
+      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
+    ) {
+      // replace old child transition data with fresh one
+      // important for dynamic transitions!
+      var oldData = oldChild.data.transition = extend({}, data);
+      // handle transition mode
+      if (mode === 'out-in') {
+        // return placeholder node and queue update when leave finishes
+        this._leaving = true;
+        mergeVNodeHook(oldData, 'afterLeave', function () {
+          this$1._leaving = false;
+          this$1.$forceUpdate();
+        });
+        return placeholder(h, rawChild)
+      } else if (mode === 'in-out') {
+        if (isAsyncPlaceholder(child)) {
+          return oldRawChild
+        }
+        var delayedLeave;
+        var performLeave = function () { delayedLeave(); };
+        mergeVNodeHook(data, 'afterEnter', performLeave);
+        mergeVNodeHook(data, 'enterCancelled', performLeave);
+        mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
+      }
+    }
+
+    return rawChild
+  }
+}
+
+/*  */
+
+// Provides transition support for list items.
+// supports move transitions using the FLIP technique.
+
+// Because the vdom's children update algorithm is "unstable" - i.e.
+// it doesn't guarantee the relative positioning of removed elements,
+// we force transition-group to update its children into two passes:
+// in the first pass, we remove all nodes that need to be removed,
+// triggering their leaving transition; in the second pass, we insert/move
+// into the final desired state. This way in the second pass removed
+// nodes will remain where they should be.
+
+var props = extend({
+  tag: String,
+  moveClass: String
+}, transitionProps);
+
+delete props.mode;
+
+var TransitionGroup = {
+  props: props,
+
+  render: function render (h) {
+    var tag = this.tag || this.$vnode.data.tag || 'span';
+    var map = Object.create(null);
+    var prevChildren = this.prevChildren = this.children;
+    var rawChildren = this.$slots.default || [];
+    var children = this.children = [];
+    var transitionData = extractTransitionData(this);
+
+    for (var i = 0; i < rawChildren.length; i++) {
+      var c = rawChildren[i];
+      if (c.tag) {
+        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
+          children.push(c);
+          map[c.key] = c
+          ;(c.data || (c.data = {})).transition = transitionData;
+        } else {
+          var opts = c.componentOptions;
+          var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
+          warn(("<transition-group> children must be keyed: <" + name + ">"));
+        }
+      }
+    }
+
+    if (prevChildren) {
+      var kept = [];
+      var removed = [];
+      for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
+        var c$1 = prevChildren[i$1];
+        c$1.data.transition = transitionData;
+        c$1.data.pos = c$1.elm.getBoundingClientRect();
+        if (map[c$1.key]) {
+          kept.push(c$1);
+        } else {
+          removed.push(c$1);
+        }
+      }
+      this.kept = h(tag, null, kept);
+      this.removed = removed;
+    }
+
+    return h(tag, null, children)
+  },
+
+  beforeUpdate: function beforeUpdate () {
+    // force removing pass
+    this.__patch__(
+      this._vnode,
+      this.kept,
+      false, // hydrating
+      true // removeOnly (!important, avoids unnecessary moves)
+    );
+    this._vnode = this.kept;
+  },
+
+  updated: function updated () {
+    var children = this.prevChildren;
+    var moveClass = this.moveClass || ((this.name || 'v') + '-move');
+    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
+      return
+    }
+
+    // we divide the work into three loops to avoid mixing DOM reads and writes
+    // in each iteration - which helps prevent layout thrashing.
+    children.forEach(callPendingCbs);
+    children.forEach(recordPosition);
+    children.forEach(applyTranslation);
+
+    // force reflow to put everything in position
+    // assign to this to avoid being removed in tree-shaking
+    // $flow-disable-line
+    this._reflow = document.body.offsetHeight;
+
+    children.forEach(function (c) {
+      if (c.data.moved) {
+        var el = c.elm;
+        var s = el.style;
+        addTransitionClass(el, moveClass);
+        s.transform = s.WebkitTransform = s.transitionDuration = '';
+        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (!e || /transform$/.test(e.propertyName)) {
+            el.removeEventListener(transitionEndEvent, cb);
+            el._moveCb = null;
+            removeTransitionClass(el, moveClass);
+          }
+        });
+      }
+    });
+  },
+
+  methods: {
+    hasMove: function hasMove (el, moveClass) {
+      /* istanbul ignore if */
+      if (!hasTransition) {
+        return false
+      }
+      /* istanbul ignore if */
+      if (this._hasMove) {
+        return this._hasMove
+      }
+      // Detect whether an element with the move class applied has
+      // CSS transitions. Since the element may be inside an entering
+      // transition at this very moment, we make a clone of it and remove
+      // all other transition classes applied to ensure only the move class
+      // is applied.
+      var clone = el.cloneNode();
+      if (el._transitionClasses) {
+        el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
+      }
+      addClass(clone, moveClass);
+      clone.style.display = 'none';
+      this.$el.appendChild(clone);
+      var info = getTransitionInfo(clone);
+      this.$el.removeChild(clone);
+      return (this._hasMove = info.hasTransform)
+    }
+  }
+}
+
+function callPendingCbs (c) {
+  /* istanbul ignore if */
+  if (c.elm._moveCb) {
+    c.elm._moveCb();
+  }
+  /* istanbul ignore if */
+  if (c.elm._enterCb) {
+    c.elm._enterCb();
+  }
+}
+
+function recordPosition (c) {
+  c.data.newPos = c.elm.getBoundingClientRect();
+}
+
+function applyTranslation (c) {
+  var oldPos = c.data.pos;
+  var newPos = c.data.newPos;
+  var dx = oldPos.left - newPos.left;
+  var dy = oldPos.top - newPos.top;
+  if (dx || dy) {
+    c.data.moved = true;
+    var s = c.elm.style;
+    s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
+    s.transitionDuration = '0s';
+  }
+}
+
+var platformComponents = {
+  Transition: Transition,
+  TransitionGroup: TransitionGroup
+}
+
+/*  */
+
+// install platform specific utils
+Vue.config.mustUseProp = mustUseProp;
+Vue.config.isReservedTag = isReservedTag;
+Vue.config.isReservedAttr = isReservedAttr;
+Vue.config.getTagNamespace = getTagNamespace;
+Vue.config.isUnknownElement = isUnknownElement;
+
+// install platform runtime directives & components
+extend(Vue.options.directives, platformDirectives);
+extend(Vue.options.components, platformComponents);
+
+// install platform patch function
+Vue.prototype.__patch__ = inBrowser ? patch : noop;
+
+// public mount method
+Vue.prototype.$mount = function (
+  el,
+  hydrating
+) {
+  el = el && inBrowser ? query(el) : undefined;
+  return mountComponent(this, el, hydrating)
+};
+
+// devtools global hook
+/* istanbul ignore next */
+if (inBrowser) {
+  setTimeout(function () {
+    if (config.devtools) {
+      if (devtools) {
+        devtools.emit('init', Vue);
+      } else if (
+        "development" !== 'production' &&
+        "development" !== 'test' &&
+        isChrome
+      ) {
+        console[console.info ? 'info' : 'log'](
+          'Download the Vue Devtools extension for a better development experience:\n' +
+          'https://github.com/vuejs/vue-devtools'
+        );
+      }
+    }
+    if ("development" !== 'production' &&
+      "development" !== 'test' &&
+      config.productionTip !== false &&
+      typeof console !== 'undefined'
+    ) {
+      console[console.info ? 'info' : 'log'](
+        "You are running Vue in development mode.\n" +
+        "Make sure to turn on production mode when deploying for production.\n" +
+        "See more tips at https://vuejs.org/guide/deployment.html"
+      );
+    }
+  }, 0);
+}
+
+/*  */
+
+var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
+var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
+
+var buildRegex = cached(function (delimiters) {
+  var open = delimiters[0].replace(regexEscapeRE, '\\$&');
+  var close = delimiters[1].replace(regexEscapeRE, '\\$&');
+  return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
+});
+
+
+
+function parseText (
+  text,
+  delimiters
+) {
+  var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
+  if (!tagRE.test(text)) {
+    return
+  }
+  var tokens = [];
+  var rawTokens = [];
+  var lastIndex = tagRE.lastIndex = 0;
+  var match, index, tokenValue;
+  while ((match = tagRE.exec(text))) {
+    index = match.index;
+    // push text token
+    if (index > lastIndex) {
+      rawTokens.push(tokenValue = text.slice(lastIndex, index));
+      tokens.push(JSON.stringify(tokenValue));
+    }
+    // tag token
+    var exp = parseFilters(match[1].trim());
+    tokens.push(("_s(" + exp + ")"));
+    rawTokens.push({ '@binding': exp });
+    lastIndex = index + match[0].length;
+  }
+  if (lastIndex < text.length) {
+    rawTokens.push(tokenValue = text.slice(lastIndex));
+    tokens.push(JSON.stringify(tokenValue));
+  }
+  return {
+    expression: tokens.join('+'),
+    tokens: rawTokens
+  }
+}
+
+/*  */
+
+function transformNode (el, options) {
+  var warn = options.warn || baseWarn;
+  var staticClass = getAndRemoveAttr(el, 'class');
+  if ("development" !== 'production' && staticClass) {
+    var res = parseText(staticClass, options.delimiters);
+    if (res) {
+      warn(
+        "class=\"" + staticClass + "\": " +
+        'Interpolation inside attributes has been removed. ' +
+        'Use v-bind or the colon shorthand instead. For example, ' +
+        'instead of <div class="{{ val }}">, use <div :class="val">.'
+      );
+    }
+  }
+  if (staticClass) {
+    el.staticClass = JSON.stringify(staticClass);
+  }
+  var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
+  if (classBinding) {
+    el.classBinding = classBinding;
+  }
+}
+
+function genData (el) {
+  var data = '';
+  if (el.staticClass) {
+    data += "staticClass:" + (el.staticClass) + ",";
+  }
+  if (el.classBinding) {
+    data += "class:" + (el.classBinding) + ",";
+  }
+  return data
+}
+
+var klass$1 = {
+  staticKeys: ['staticClass'],
+  transformNode: transformNode,
+  genData: genData
+}
+
+/*  */
+
+function transformNode$1 (el, options) {
+  var warn = options.warn || baseWarn;
+  var staticStyle = getAndRemoveAttr(el, 'style');
+  if (staticStyle) {
+    /* istanbul ignore if */
+    {
+      var res = parseText(staticStyle, options.delimiters);
+      if (res) {
+        warn(
+          "style=\"" + staticStyle + "\": " +
+          'Interpolation inside attributes has been removed. ' +
+          'Use v-bind or the colon shorthand instead. For example, ' +
+          'instead of <div style="{{ val }}">, use <div :style="val">.'
+        );
+      }
+    }
+    el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
+  }
+
+  var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
+  if (styleBinding) {
+    el.styleBinding = styleBinding;
+  }
+}
+
+function genData$1 (el) {
+  var data = '';
+  if (el.staticStyle) {
+    data += "staticStyle:" + (el.staticStyle) + ",";
+  }
+  if (el.styleBinding) {
+    data += "style:(" + (el.styleBinding) + "),";
+  }
+  return data
+}
+
+var style$1 = {
+  staticKeys: ['staticStyle'],
+  transformNode: transformNode$1,
+  genData: genData$1
+}
+
+/*  */
+
+var decoder;
+
+var he = {
+  decode: function decode (html) {
+    decoder = decoder || document.createElement('div');
+    decoder.innerHTML = html;
+    return decoder.textContent
+  }
+}
+
+/*  */
+
+var isUnaryTag = makeMap(
+  'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
+  'link,meta,param,source,track,wbr'
+);
+
+// Elements that you can, intentionally, leave open
+// (and which close themselves)
+var canBeLeftOpenTag = makeMap(
+  'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
+);
+
+// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
+// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
+var isNonPhrasingTag = makeMap(
+  'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
+  'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
+  'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
+  'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
+  'title,tr,track'
+);
+
+/**
+ * Not type-checking this file because it's mostly vendor code.
+ */
+
+/*!
+ * HTML Parser By John Resig (ejohn.org)
+ * Modified by Juriy "kangax" Zaytsev
+ * Original code by Erik Arvidsson, Mozilla Public License
+ * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
+ */
+
+// Regular Expressions for parsing tags and attributes
+var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
+// but for Vue templates we can enforce a simple charset
+var ncname = '[a-zA-Z_][\\w\\-\\.]*';
+var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
+var startTagOpen = new RegExp(("^<" + qnameCapture));
+var startTagClose = /^\s*(\/?)>/;
+var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
+var doctype = /^<!DOCTYPE [^>]+>/i;
+// #7298: escape - to avoid being pased as HTML comment when inlined in page
+var comment = /^<!\--/;
+var conditionalComment = /^<!\[/;
+
+var IS_REGEX_CAPTURING_BROKEN = false;
+'x'.replace(/x(.)?/g, function (m, g) {
+  IS_REGEX_CAPTURING_BROKEN = g === '';
+});
+
+// Special Elements (can contain anything)
+var isPlainTextElement = makeMap('script,style,textarea', true);
+var reCache = {};
+
+var decodingMap = {
+  '&lt;': '<',
+  '&gt;': '>',
+  '&quot;': '"',
+  '&amp;': '&',
+  '&#10;': '\n',
+  '&#9;': '\t'
+};
+var encodedAttr = /&(?:lt|gt|quot|amp);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
+
+// #5992
+var isIgnoreNewlineTag = makeMap('pre,textarea', true);
+var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
+
+function decodeAttr (value, shouldDecodeNewlines) {
+  var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
+  return value.replace(re, function (match) { return decodingMap[match]; })
+}
+
+function parseHTML (html, options) {
+  var stack = [];
+  var expectHTML = options.expectHTML;
+  var isUnaryTag$$1 = options.isUnaryTag || no;
+  var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
+  var index = 0;
+  var last, lastTag;
+  while (html) {
+    last = html;
+    // Make sure we're not in a plaintext content element like script/style
+    if (!lastTag || !isPlainTextElement(lastTag)) {
+      var textEnd = html.indexOf('<');
+      if (textEnd === 0) {
+        // Comment:
+        if (comment.test(html)) {
+          var commentEnd = html.indexOf('-->');
+
+          if (commentEnd >= 0) {
+            if (options.shouldKeepComment) {
+              options.comment(html.substring(4, commentEnd));
+            }
+            advance(commentEnd + 3);
+            continue
+          }
+        }
+
+        // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
+        if (conditionalComment.test(html)) {
+          var conditionalEnd = html.indexOf(']>');
+
+          if (conditionalEnd >= 0) {
+            advance(conditionalEnd + 2);
+            continue
+          }
+        }
+
+        // Doctype:
+        var doctypeMatch = html.match(doctype);
+        if (doctypeMatch) {
+          advance(doctypeMatch[0].length);
+          continue
+        }
+
+        // End tag:
+        var endTagMatch = html.match(endTag);
+        if (endTagMatch) {
+          var curIndex = index;
+          advance(endTagMatch[0].length);
+          parseEndTag(endTagMatch[1], curIndex, index);
+          continue
+        }
+
+        // Start tag:
+        var startTagMatch = parseStartTag();
+        if (startTagMatch) {
+          handleStartTag(startTagMatch);
+          if (shouldIgnoreFirstNewline(lastTag, html)) {
+            advance(1);
+          }
+          continue
+        }
+      }
+
+      var text = (void 0), rest = (void 0), next = (void 0);
+      if (textEnd >= 0) {
+        rest = html.slice(textEnd);
+        while (
+          !endTag.test(rest) &&
+          !startTagOpen.test(rest) &&
+          !comment.test(rest) &&
+          !conditionalComment.test(rest)
+        ) {
+          // < in plain text, be forgiving and treat it as text
+          next = rest.indexOf('<', 1);
+          if (next < 0) { break }
+          textEnd += next;
+          rest = html.slice(textEnd);
+        }
+        text = html.substring(0, textEnd);
+        advance(textEnd);
+      }
+
+      if (textEnd < 0) {
+        text = html;
+        html = '';
+      }
+
+      if (options.chars && text) {
+        options.chars(text);
+      }
+    } else {
+      var endTagLength = 0;
+      var stackedTag = lastTag.toLowerCase();
+      var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
+      var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
+        endTagLength = endTag.length;
+        if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
+          text = text
+            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
+            .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
+        }
+        if (shouldIgnoreFirstNewline(stackedTag, text)) {
+          text = text.slice(1);
+        }
+        if (options.chars) {
+          options.chars(text);
+        }
+        return ''
+      });
+      index += html.length - rest$1.length;
+      html = rest$1;
+      parseEndTag(stackedTag, index - endTagLength, index);
+    }
+
+    if (html === last) {
+      options.chars && options.chars(html);
+      if ("development" !== 'production' && !stack.length && options.warn) {
+        options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
+      }
+      break
+    }
+  }
+
+  // Clean up any remaining tags
+  parseEndTag();
+
+  function advance (n) {
+    index += n;
+    html = html.substring(n);
+  }
+
+  function parseStartTag () {
+    var start = html.match(startTagOpen);
+    if (start) {
+      var match = {
+        tagName: start[1],
+        attrs: [],
+        start: index
+      };
+      advance(start[0].length);
+      var end, attr;
+      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+        advance(attr[0].length);
+        match.attrs.push(attr);
+      }
+      if (end) {
+        match.unarySlash = end[1];
+        advance(end[0].length);
+        match.end = index;
+        return match
+      }
+    }
+  }
+
+  function handleStartTag (match) {
+    var tagName = match.tagName;
+    var unarySlash = match.unarySlash;
+
+    if (expectHTML) {
+      if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
+        parseEndTag(lastTag);
+      }
+      if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
+        parseEndTag(tagName);
+      }
+    }
+
+    var unary = isUnaryTag$$1(tagName) || !!unarySlash;
+
+    var l = match.attrs.length;
+    var attrs = new Array(l);
+    for (var i = 0; i < l; i++) {
+      var args = match.attrs[i];
+      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
+      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
+        if (args[3] === '') { delete args[3]; }
+        if (args[4] === '') { delete args[4]; }
+        if (args[5] === '') { delete args[5]; }
+      }
+      var value = args[3] || args[4] || args[5] || '';
+      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
+      attrs[i] = {
+        name: args[1],
+        value: decodeAttr(value, shouldDecodeNewlines)
+      };
+    }
+
+    if (!unary) {
+      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
+      lastTag = tagName;
+    }
+
+    if (options.start) {
+      options.start(tagName, attrs, unary, match.start, match.end);
+    }
+  }
+
+  function parseEndTag (tagName, start, end) {
+    var pos, lowerCasedTagName;
+    if (start == null) { start = index; }
+    if (end == null) { end = index; }
+
+    if (tagName) {
+      lowerCasedTagName = tagName.toLowerCase();
+    }
+
+    // Find the closest opened tag of the same type
+    if (tagName) {
+      for (pos = stack.length - 1; pos >= 0; pos--) {
+        if (stack[pos].lowerCasedTag === lowerCasedTagName) {
+          break
+        }
+      }
+    } else {
+      // If no tag name is provided, clean shop
+      pos = 0;
+    }
+
+    if (pos >= 0) {
+      // Close all the open elements, up the stack
+      for (var i = stack.length - 1; i >= pos; i--) {
+        if ("development" !== 'production' &&
+          (i > pos || !tagName) &&
+          options.warn
+        ) {
+          options.warn(
+            ("tag <" + (stack[i].tag) + "> has no matching end tag.")
+          );
+        }
+        if (options.end) {
+          options.end(stack[i].tag, start, end);
+        }
+      }
+
+      // Remove the open elements from the stack
+      stack.length = pos;
+      lastTag = pos && stack[pos - 1].tag;
+    } else if (lowerCasedTagName === 'br') {
+      if (options.start) {
+        options.start(tagName, [], true, start, end);
+      }
+    } else if (lowerCasedTagName === 'p') {
+      if (options.start) {
+        options.start(tagName, [], false, start, end);
+      }
+      if (options.end) {
+        options.end(tagName, start, end);
+      }
+    }
+  }
+}
+
+/*  */
+
+var onRE = /^@|^v-on:/;
+var dirRE = /^v-|^@|^:/;
+var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
+var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
+var stripParensRE = /^\(|\)$/g;
+
+var argRE = /:(.*)$/;
+var bindRE = /^:|^v-bind:/;
+var modifierRE = /\.[^.]+/g;
+
+var decodeHTMLCached = cached(he.decode);
+
+// configurable state
+var warn$2;
+var delimiters;
+var transforms;
+var preTransforms;
+var postTransforms;
+var platformIsPreTag;
+var platformMustUseProp;
+var platformGetTagNamespace;
+
+
+
+function createASTElement (
+  tag,
+  attrs,
+  parent
+) {
+  return {
+    type: 1,
+    tag: tag,
+    attrsList: attrs,
+    attrsMap: makeAttrsMap(attrs),
+    parent: parent,
+    children: []
+  }
+}
+
+/**
+ * Convert HTML string to AST.
+ */
+function parse (
+  template,
+  options
+) {
+  warn$2 = options.warn || baseWarn;
+
+  platformIsPreTag = options.isPreTag || no;
+  platformMustUseProp = options.mustUseProp || no;
+  platformGetTagNamespace = options.getTagNamespace || no;
+
+  transforms = pluckModuleFunction(options.modules, 'transformNode');
+  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
+  postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
+
+  delimiters = options.delimiters;
+
+  var stack = [];
+  var preserveWhitespace = options.preserveWhitespace !== false;
+  var root;
+  var currentParent;
+  var inVPre = false;
+  var inPre = false;
+  var warned = false;
+
+  function warnOnce (msg) {
+    if (!warned) {
+      warned = true;
+      warn$2(msg);
+    }
+  }
+
+  function closeElement (element) {
+    // check pre state
+    if (element.pre) {
+      inVPre = false;
+    }
+    if (platformIsPreTag(element.tag)) {
+      inPre = false;
+    }
+    // apply post-transforms
+    for (var i = 0; i < postTransforms.length; i++) {
+      postTransforms[i](element, options);
+    }
+  }
+
+  parseHTML(template, {
+    warn: warn$2,
+    expectHTML: options.expectHTML,
+    isUnaryTag: options.isUnaryTag,
+    canBeLeftOpenTag: options.canBeLeftOpenTag,
+    shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
+    shouldKeepComment: options.comments,
+    start: function start (tag, attrs, unary) {
+      // check namespace.
+      // inherit parent ns if there is one
+      var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
+
+      // handle IE svg bug
+      /* istanbul ignore if */
+      if (isIE && ns === 'svg') {
+        attrs = guardIESVGBug(attrs);
+      }
+
+      var element = createASTElement(tag, attrs, currentParent);
+      if (ns) {
+        element.ns = ns;
+      }
+
+      if (isForbiddenTag(element) && !isServerRendering()) {
+        element.forbidden = true;
+        "development" !== 'production' && warn$2(
+          'Templates should only be responsible for mapping the state to the ' +
+          'UI. Avoid placing tags with side-effects in your templates, such as ' +
+          "<" + tag + ">" + ', as they will not be parsed.'
+        );
+      }
+
+      // apply pre-transforms
+      for (var i = 0; i < preTransforms.length; i++) {
+        element = preTransforms[i](element, options) || element;
+      }
+
+      if (!inVPre) {
+        processPre(element);
+        if (element.pre) {
+          inVPre = true;
+        }
+      }
+      if (platformIsPreTag(element.tag)) {
+        inPre = true;
+      }
+      if (inVPre) {
+        processRawAttrs(element);
+      } else if (!element.processed) {
+        // structural directives
+        processFor(element);
+        processIf(element);
+        processOnce(element);
+        // element-scope stuff
+        processElement(element, options);
+      }
+
+      function checkRootConstraints (el) {
+        {
+          if (el.tag === 'slot' || el.tag === 'template') {
+            warnOnce(
+              "Cannot use <" + (el.tag) + "> as component root element because it may " +
+              'contain multiple nodes.'
+            );
+          }
+          if (el.attrsMap.hasOwnProperty('v-for')) {
+            warnOnce(
+              'Cannot use v-for on stateful component root element because ' +
+              'it renders multiple elements.'
+            );
+          }
+        }
+      }
+
+      // tree management
+      if (!root) {
+        root = element;
+        checkRootConstraints(root);
+      } else if (!stack.length) {
+        // allow root elements with v-if, v-else-if and v-else
+        if (root.if && (element.elseif || element.else)) {
+          checkRootConstraints(element);
+          addIfCondition(root, {
+            exp: element.elseif,
+            block: element
+          });
+        } else {
+          warnOnce(
+            "Component template should contain exactly one root element. " +
+            "If you are using v-if on multiple elements, " +
+            "use v-else-if to chain them instead."
+          );
+        }
+      }
+      if (currentParent && !element.forbidden) {
+        if (element.elseif || element.else) {
+          processIfConditions(element, currentParent);
+        } else if (element.slotScope) { // scoped slot
+          currentParent.plain = false;
+          var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+        } else {
+          currentParent.children.push(element);
+          element.parent = currentParent;
+        }
+      }
+      if (!unary) {
+        currentParent = element;
+        stack.push(element);
+      } else {
+        closeElement(element);
+      }
+    },
+
+    end: function end () {
+      // remove trailing whitespace
+      var element = stack[stack.length - 1];
+      var lastNode = element.children[element.children.length - 1];
+      if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
+        element.children.pop();
+      }
+      // pop stack
+      stack.length -= 1;
+      currentParent = stack[stack.length - 1];
+      closeElement(element);
+    },
+
+    chars: function chars (text) {
+      if (!currentParent) {
+        {
+          if (text === template) {
+            warnOnce(
+              'Component template requires a root element, rather than just text.'
+            );
+          } else if ((text = text.trim())) {
+            warnOnce(
+              ("text \"" + text + "\" outside root element will be ignored.")
+            );
+          }
+        }
+        return
+      }
+      // IE textarea placeholder bug
+      /* istanbul ignore if */
+      if (isIE &&
+        currentParent.tag === 'textarea' &&
+        currentParent.attrsMap.placeholder === text
+      ) {
+        return
+      }
+      var children = currentParent.children;
+      text = inPre || text.trim()
+        ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
+        // only preserve whitespace if its not right after a starting tag
+        : preserveWhitespace && children.length ? ' ' : '';
+      if (text) {
+        var res;
+        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
+          children.push({
+            type: 2,
+            expression: res.expression,
+            tokens: res.tokens,
+            text: text
+          });
+        } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
+          children.push({
+            type: 3,
+            text: text
+          });
+        }
+      }
+    },
+    comment: function comment (text) {
+      currentParent.children.push({
+        type: 3,
+        text: text,
+        isComment: true
+      });
+    }
+  });
+  return root
+}
+
+function processPre (el) {
+  if (getAndRemoveAttr(el, 'v-pre') != null) {
+    el.pre = true;
+  }
+}
+
+function processRawAttrs (el) {
+  var l = el.attrsList.length;
+  if (l) {
+    var attrs = el.attrs = new Array(l);
+    for (var i = 0; i < l; i++) {
+      attrs[i] = {
+        name: el.attrsList[i].name,
+        value: JSON.stringify(el.attrsList[i].value)
+      };
+    }
+  } else if (!el.pre) {
+    // non root node in pre blocks with no attributes
+    el.plain = true;
+  }
+}
+
+function processElement (element, options) {
+  processKey(element);
+
+  // determine whether this is a plain element after
+  // removing structural attributes
+  element.plain = !element.key && !element.attrsList.length;
+
+  processRef(element);
+  processSlot(element);
+  processComponent(element);
+  for (var i = 0; i < transforms.length; i++) {
+    element = transforms[i](element, options) || element;
+  }
+  processAttrs(element);
+}
+
+function processKey (el) {
+  var exp = getBindingAttr(el, 'key');
+  if (exp) {
+    if ("development" !== 'production' && el.tag === 'template') {
+      warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+    }
+    el.key = exp;
+  }
+}
+
+function processRef (el) {
+  var ref = getBindingAttr(el, 'ref');
+  if (ref) {
+    el.ref = ref;
+    el.refInFor = checkInFor(el);
+  }
+}
+
+function processFor (el) {
+  var exp;
+  if ((exp = getAndRemoveAttr(el, 'v-for'))) {
+    var res = parseFor(exp);
+    if (res) {
+      extend(el, res);
+    } else {
+      warn$2(
+        ("Invalid v-for expression: " + exp)
+      );
+    }
+  }
+}
+
+
+
+function parseFor (exp) {
+  var inMatch = exp.match(forAliasRE);
+  if (!inMatch) { return }
+  var res = {};
+  res.for = inMatch[2].trim();
+  var alias = inMatch[1].trim().replace(stripParensRE, '');
+  var iteratorMatch = alias.match(forIteratorRE);
+  if (iteratorMatch) {
+    res.alias = alias.replace(forIteratorRE, '');
+    res.iterator1 = iteratorMatch[1].trim();
+    if (iteratorMatch[2]) {
+      res.iterator2 = iteratorMatch[2].trim();
+    }
+  } else {
+    res.alias = alias;
+  }
+  return res
+}
+
+function processIf (el) {
+  var exp = getAndRemoveAttr(el, 'v-if');
+  if (exp) {
+    el.if = exp;
+    addIfCondition(el, {
+      exp: exp,
+      block: el
+    });
+  } else {
+    if (getAndRemoveAttr(el, 'v-else') != null) {
+      el.else = true;
+    }
+    var elseif = getAndRemoveAttr(el, 'v-else-if');
+    if (elseif) {
+      el.elseif = elseif;
+    }
+  }
+}
+
+function processIfConditions (el, parent) {
+  var prev = findPrevElement(parent.children);
+  if (prev && prev.if) {
+    addIfCondition(prev, {
+      exp: el.elseif,
+      block: el
+    });
+  } else {
+    warn$2(
+      "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
+      "used on element <" + (el.tag) + "> without corresponding v-if."
+    );
+  }
+}
+
+function findPrevElement (children) {
+  var i = children.length;
+  while (i--) {
+    if (children[i].type === 1) {
+      return children[i]
+    } else {
+      if ("development" !== 'production' && children[i].text !== ' ') {
+        warn$2(
+          "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
+          "will be ignored."
+        );
+      }
+      children.pop();
+    }
+  }
+}
+
+function addIfCondition (el, condition) {
+  if (!el.ifConditions) {
+    el.ifConditions = [];
+  }
+  el.ifConditions.push(condition);
+}
+
+function processOnce (el) {
+  var once$$1 = getAndRemoveAttr(el, 'v-once');
+  if (once$$1 != null) {
+    el.once = true;
+  }
+}
+
+function processSlot (el) {
+  if (el.tag === 'slot') {
+    el.slotName = getBindingAttr(el, 'name');
+    if ("development" !== 'production' && el.key) {
+      warn$2(
+        "`key` does not work on <slot> because slots are abstract outlets " +
+        "and can possibly expand into multiple elements. " +
+        "Use the key on a wrapping element instead."
+      );
+    }
+  } else {
+    var slotScope;
+    if (el.tag === 'template') {
+      slotScope = getAndRemoveAttr(el, 'scope');
+      /* istanbul ignore if */
+      if ("development" !== 'production' && slotScope) {
+        warn$2(
+          "the \"scope\" attribute for scoped slots have been deprecated and " +
+          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+          "can also be used on plain elements in addition to <template> to " +
+          "denote scoped slots.",
+          true
+        );
+      }
+      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
+    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      /* istanbul ignore if */
+      if ("development" !== 'production' && el.attrsMap['v-for']) {
+        warn$2(
+          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+          "(v-for takes higher priority). Use a wrapper <template> for the " +
+          "scoped slot to make it clearer.",
+          true
+        );
+      }
+      el.slotScope = slotScope;
+    }
+    var slotTarget = getBindingAttr(el, 'slot');
+    if (slotTarget) {
+      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+      // preserve slot as an attribute for native shadow DOM compat
+      // only for non-scoped slots.
+      if (el.tag !== 'template' && !el.slotScope) {
+        addAttr(el, 'slot', slotTarget);
+      }
+    }
+  }
+}
+
+function processComponent (el) {
+  var binding;
+  if ((binding = getBindingAttr(el, 'is'))) {
+    el.component = binding;
+  }
+  if (getAndRemoveAttr(el, 'inline-template') != null) {
+    el.inlineTemplate = true;
+  }
+}
+
+function processAttrs (el) {
+  var list = el.attrsList;
+  var i, l, name, rawName, value, modifiers, isProp;
+  for (i = 0, l = list.length; i < l; i++) {
+    name = rawName = list[i].name;
+    value = list[i].value;
+    if (dirRE.test(name)) {
+      // mark element as dynamic
+      el.hasBindings = true;
+      // modifiers
+      modifiers = parseModifiers(name);
+      if (modifiers) {
+        name = name.replace(modifierRE, '');
+      }
+      if (bindRE.test(name)) { // v-bind
+        name = name.replace(bindRE, '');
+        value = parseFilters(value);
+        isProp = false;
+        if (modifiers) {
+          if (modifiers.prop) {
+            isProp = true;
+            name = camelize(name);
+            if (name === 'innerHtml') { name = 'innerHTML'; }
+          }
+          if (modifiers.camel) {
+            name = camelize(name);
+          }
+          if (modifiers.sync) {
+            addHandler(
+              el,
+              ("update:" + (camelize(name))),
+              genAssignmentCode(value, "$event")
+            );
+          }
+        }
+        if (isProp || (
+          !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
+        )) {
+          addProp(el, name, value);
+        } else {
+          addAttr(el, name, value);
+        }
+      } else if (onRE.test(name)) { // v-on
+        name = name.replace(onRE, '');
+        addHandler(el, name, value, modifiers, false, warn$2);
+      } else { // normal directives
+        name = name.replace(dirRE, '');
+        // parse arg
+        var argMatch = name.match(argRE);
+        var arg = argMatch && argMatch[1];
+        if (arg) {
+          name = name.slice(0, -(arg.length + 1));
+        }
+        addDirective(el, name, rawName, value, arg, modifiers);
+        if ("development" !== 'production' && name === 'model') {
+          checkForAliasModel(el, value);
+        }
+      }
+    } else {
+      // literal attribute
+      {
+        var res = parseText(value, delimiters);
+        if (res) {
+          warn$2(
+            name + "=\"" + value + "\": " +
+            'Interpolation inside attributes has been removed. ' +
+            'Use v-bind or the colon shorthand instead. For example, ' +
+            'instead of <div id="{{ val }}">, use <div :id="val">.'
+          );
+        }
+      }
+      addAttr(el, name, JSON.stringify(value));
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true');
+      }
+    }
+  }
+}
+
+function checkInFor (el) {
+  var parent = el;
+  while (parent) {
+    if (parent.for !== undefined) {
+      return true
+    }
+    parent = parent.parent;
+  }
+  return false
+}
+
+function parseModifiers (name) {
+  var match = name.match(modifierRE);
+  if (match) {
+    var ret = {};
+    match.forEach(function (m) { ret[m.slice(1)] = true; });
+    return ret
+  }
+}
+
+function makeAttrsMap (attrs) {
+  var map = {};
+  for (var i = 0, l = attrs.length; i < l; i++) {
+    if (
+      "development" !== 'production' &&
+      map[attrs[i].name] && !isIE && !isEdge
+    ) {
+      warn$2('duplicate attribute: ' + attrs[i].name);
+    }
+    map[attrs[i].name] = attrs[i].value;
+  }
+  return map
+}
+
+// for script (e.g. type="x/template") or style, do not decode content
+function isTextTag (el) {
+  return el.tag === 'script' || el.tag === 'style'
+}
+
+function isForbiddenTag (el) {
+  return (
+    el.tag === 'style' ||
+    (el.tag === 'script' && (
+      !el.attrsMap.type ||
+      el.attrsMap.type === 'text/javascript'
+    ))
+  )
+}
+
+var ieNSBug = /^xmlns:NS\d+/;
+var ieNSPrefix = /^NS\d+:/;
+
+/* istanbul ignore next */
+function guardIESVGBug (attrs) {
+  var res = [];
+  for (var i = 0; i < attrs.length; i++) {
+    var attr = attrs[i];
+    if (!ieNSBug.test(attr.name)) {
+      attr.name = attr.name.replace(ieNSPrefix, '');
+      res.push(attr);
+    }
+  }
+  return res
+}
+
+function checkForAliasModel (el, value) {
+  var _el = el;
+  while (_el) {
+    if (_el.for && _el.alias === value) {
+      warn$2(
+        "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+        "You are binding v-model directly to a v-for iteration alias. " +
+        "This will not be able to modify the v-for source array because " +
+        "writing to the alias is like modifying a function local variable. " +
+        "Consider using an array of objects and use v-model on an object property instead."
+      );
+    }
+    _el = _el.parent;
+  }
+}
+
+/*  */
+
+/**
+ * Expand input[v-model] with dyanmic type bindings into v-if-else chains
+ * Turn this:
+ *   <input v-model="data[type]" :type="type">
+ * into this:
+ *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
+ *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
+ *   <input v-else :type="type" v-model="data[type]">
+ */
+
+function preTransformNode (el, options) {
+  if (el.tag === 'input') {
+    var map = el.attrsMap;
+    if (!map['v-model']) {
+      return
+    }
+
+    var typeBinding;
+    if (map[':type'] || map['v-bind:type']) {
+      typeBinding = getBindingAttr(el, 'type');
+    }
+    if (!map.type && !typeBinding && map['v-bind']) {
+      typeBinding = "(" + (map['v-bind']) + ").type";
+    }
+
+    if (typeBinding) {
+      var ifCondition = getAndRemoveAttr(el, 'v-if', true);
+      var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
+      // 1. checkbox
+      var branch0 = cloneASTElement(el);
+      // process for on the main node
+      processFor(branch0);
+      addRawAttr(branch0, 'type', 'checkbox');
+      processElement(branch0, options);
+      branch0.processed = true; // prevent it from double-processed
+      branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
+      addIfCondition(branch0, {
+        exp: branch0.if,
+        block: branch0
+      });
+      // 2. add radio else-if condition
+      var branch1 = cloneASTElement(el);
+      getAndRemoveAttr(branch1, 'v-for', true);
+      addRawAttr(branch1, 'type', 'radio');
+      processElement(branch1, options);
+      addIfCondition(branch0, {
+        exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
+        block: branch1
+      });
+      // 3. other
+      var branch2 = cloneASTElement(el);
+      getAndRemoveAttr(branch2, 'v-for', true);
+      addRawAttr(branch2, ':type', typeBinding);
+      processElement(branch2, options);
+      addIfCondition(branch0, {
+        exp: ifCondition,
+        block: branch2
+      });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
+      return branch0
+    }
+  }
+}
+
+function cloneASTElement (el) {
+  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
+}
+
+var model$2 = {
+  preTransformNode: preTransformNode
+}
+
+var modules$1 = [
+  klass$1,
+  style$1,
+  model$2
+]
+
+/*  */
+
+function text (el, dir) {
+  if (dir.value) {
+    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
+  }
+}
+
+/*  */
+
+function html (el, dir) {
+  if (dir.value) {
+    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+  }
+}
+
+var directives$1 = {
+  model: model,
+  text: text,
+  html: html
+}
+
+/*  */
+
+var baseOptions = {
+  expectHTML: true,
+  modules: modules$1,
+  directives: directives$1,
+  isPreTag: isPreTag,
+  isUnaryTag: isUnaryTag,
+  mustUseProp: mustUseProp,
+  canBeLeftOpenTag: canBeLeftOpenTag,
+  isReservedTag: isReservedTag,
+  getTagNamespace: getTagNamespace,
+  staticKeys: genStaticKeys(modules$1)
+};
+
+/*  */
+
+var isStaticKey;
+var isPlatformReservedTag;
+
+var genStaticKeysCached = cached(genStaticKeys$1);
+
+/**
+ * Goal of the optimizer: walk the generated template AST tree
+ * and detect sub-trees that are purely static, i.e. parts of
+ * the DOM that never needs to change.
+ *
+ * Once we detect these sub-trees, we can:
+ *
+ * 1. Hoist them into constants, so that we no longer need to
+ *    create fresh nodes for them on each re-render;
+ * 2. Completely skip them in the patching process.
+ */
+function optimize (root, options) {
+  if (!root) { return }
+  isStaticKey = genStaticKeysCached(options.staticKeys || '');
+  isPlatformReservedTag = options.isReservedTag || no;
+  // first pass: mark all non-static nodes.
+  markStatic$1(root);
+  // second pass: mark static roots.
+  markStaticRoots(root, false);
+}
+
+function genStaticKeys$1 (keys) {
+  return makeMap(
+    'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
+    (keys ? ',' + keys : '')
+  )
+}
+
+function markStatic$1 (node) {
+  node.static = isStatic(node);
+  if (node.type === 1) {
+    // do not make component slot content static. this avoids
+    // 1. components not able to mutate slot nodes
+    // 2. static slot content fails for hot-reloading
+    if (
+      !isPlatformReservedTag(node.tag) &&
+      node.tag !== 'slot' &&
+      node.attrsMap['inline-template'] == null
+    ) {
+      return
+    }
+    for (var i = 0, l = node.children.length; i < l; i++) {
+      var child = node.children[i];
+      markStatic$1(child);
+      if (!child.static) {
+        node.static = false;
+      }
+    }
+    if (node.ifConditions) {
+      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+        var block = node.ifConditions[i$1].block;
+        markStatic$1(block);
+        if (!block.static) {
+          node.static = false;
+        }
+      }
+    }
+  }
+}
+
+function markStaticRoots (node, isInFor) {
+  if (node.type === 1) {
+    if (node.static || node.once) {
+      node.staticInFor = isInFor;
+    }
+    // For a node to qualify as a static root, it should have children that
+    // are not just static text. Otherwise the cost of hoisting out will
+    // outweigh the benefits and it's better off to just always render it fresh.
+    if (node.static && node.children.length && !(
+      node.children.length === 1 &&
+      node.children[0].type === 3
+    )) {
+      node.staticRoot = true;
+      return
+    } else {
+      node.staticRoot = false;
+    }
+    if (node.children) {
+      for (var i = 0, l = node.children.length; i < l; i++) {
+        markStaticRoots(node.children[i], isInFor || !!node.for);
+      }
+    }
+    if (node.ifConditions) {
+      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+        markStaticRoots(node.ifConditions[i$1].block, isInFor);
+      }
+    }
+  }
+}
+
+function isStatic (node) {
+  if (node.type === 2) { // expression
+    return false
+  }
+  if (node.type === 3) { // text
+    return true
+  }
+  return !!(node.pre || (
+    !node.hasBindings && // no dynamic bindings
+    !node.if && !node.for && // not v-if or v-for or v-else
+    !isBuiltInTag(node.tag) && // not a built-in
+    isPlatformReservedTag(node.tag) && // not a component
+    !isDirectChildOfTemplateFor(node) &&
+    Object.keys(node).every(isStaticKey)
+  ))
+}
+
+function isDirectChildOfTemplateFor (node) {
+  while (node.parent) {
+    node = node.parent;
+    if (node.tag !== 'template') {
+      return false
+    }
+    if (node.for) {
+      return true
+    }
+  }
+  return false
+}
+
+/*  */
+
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
+
+// KeyboardEvent.keyCode aliases
+var keyCodes = {
+  esc: 27,
+  tab: 9,
+  enter: 13,
+  space: 32,
+  up: 38,
+  left: 37,
+  right: 39,
+  down: 40,
+  'delete': [8, 46]
+};
+
+// KeyboardEvent.key aliases
+var keyNames = {
+  esc: 'Escape',
+  tab: 'Tab',
+  enter: 'Enter',
+  space: ' ',
+  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
+  up: ['Up', 'ArrowUp'],
+  left: ['Left', 'ArrowLeft'],
+  right: ['Right', 'ArrowRight'],
+  down: ['Down', 'ArrowDown'],
+  'delete': ['Backspace', 'Delete']
+};
+
+// #4868: modifiers that prevent the execution of the listener
+// need to explicitly return null so that we can determine whether to remove
+// the listener for .once
+var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
+
+var modifierCode = {
+  stop: '$event.stopPropagation();',
+  prevent: '$event.preventDefault();',
+  self: genGuard("$event.target !== $event.currentTarget"),
+  ctrl: genGuard("!$event.ctrlKey"),
+  shift: genGuard("!$event.shiftKey"),
+  alt: genGuard("!$event.altKey"),
+  meta: genGuard("!$event.metaKey"),
+  left: genGuard("'button' in $event && $event.button !== 0"),
+  middle: genGuard("'button' in $event && $event.button !== 1"),
+  right: genGuard("'button' in $event && $event.button !== 2")
+};
+
+function genHandlers (
+  events,
+  isNative,
+  warn
+) {
+  var res = isNative ? 'nativeOn:{' : 'on:{';
+  for (var name in events) {
+    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
+  }
+  return res.slice(0, -1) + '}'
+}
+
+function genHandler (
+  name,
+  handler
+) {
+  if (!handler) {
+    return 'function(){}'
+  }
+
+  if (Array.isArray(handler)) {
+    return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
+  }
+
+  var isMethodPath = simplePathRE.test(handler.value);
+  var isFunctionExpression = fnExpRE.test(handler.value);
+
+  if (!handler.modifiers) {
+    if (isMethodPath || isFunctionExpression) {
+      return handler.value
+    }
+    /* istanbul ignore if */
+    return ("function($event){" + (handler.value) + "}") // inline statement
+  } else {
+    var code = '';
+    var genModifierCode = '';
+    var keys = [];
+    for (var key in handler.modifiers) {
+      if (modifierCode[key]) {
+        genModifierCode += modifierCode[key];
+        // left/right
+        if (keyCodes[key]) {
+          keys.push(key);
+        }
+      } else if (key === 'exact') {
+        var modifiers = (handler.modifiers);
+        genModifierCode += genGuard(
+          ['ctrl', 'shift', 'alt', 'meta']
+            .filter(function (keyModifier) { return !modifiers[keyModifier]; })
+            .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
+            .join('||')
+        );
+      } else {
+        keys.push(key);
+      }
+    }
+    if (keys.length) {
+      code += genKeyFilter(keys);
+    }
+    // Make sure modifiers like prevent and stop get executed after key filtering
+    if (genModifierCode) {
+      code += genModifierCode;
+    }
+    var handlerCode = isMethodPath
+      ? ("return " + (handler.value) + "($event)")
+      : isFunctionExpression
+        ? ("return (" + (handler.value) + ")($event)")
+        : handler.value;
+    /* istanbul ignore if */
+    return ("function($event){" + code + handlerCode + "}")
+  }
+}
+
+function genKeyFilter (keys) {
+  return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+}
+
+function genFilterCode (key) {
+  var keyVal = parseInt(key, 10);
+  if (keyVal) {
+    return ("$event.keyCode!==" + keyVal)
+  }
+  var keyCode = keyCodes[key];
+  var keyName = keyNames[key];
+  return (
+    "_k($event.keyCode," +
+    (JSON.stringify(key)) + "," +
+    (JSON.stringify(keyCode)) + "," +
+    "$event.key," +
+    "" + (JSON.stringify(keyName)) +
+    ")"
+  )
+}
+
+/*  */
+
+function on (el, dir) {
+  if ("development" !== 'production' && dir.modifiers) {
+    warn("v-on without argument does not support modifiers.");
+  }
+  el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
+}
+
+/*  */
+
+function bind$1 (el, dir) {
+  el.wrapData = function (code) {
+    return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
+  };
+}
+
+/*  */
+
+var baseDirectives = {
+  on: on,
+  bind: bind$1,
+  cloak: noop
+}
+
+/*  */
+
+var CodegenState = function CodegenState (options) {
+  this.options = options;
+  this.warn = options.warn || baseWarn;
+  this.transforms = pluckModuleFunction(options.modules, 'transformCode');
+  this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
+  this.directives = extend(extend({}, baseDirectives), options.directives);
+  var isReservedTag = options.isReservedTag || no;
+  this.maybeComponent = function (el) { return !isReservedTag(el.tag); };
+  this.onceId = 0;
+  this.staticRenderFns = [];
+};
+
+
+
+function generate (
+  ast,
+  options
+) {
+  var state = new CodegenState(options);
+  var code = ast ? genElement(ast, state) : '_c("div")';
+  return {
+    render: ("with(this){return " + code + "}"),
+    staticRenderFns: state.staticRenderFns
+  }
+}
+
+function genElement (el, state) {
+  if (el.staticRoot && !el.staticProcessed) {
+    return genStatic(el, state)
+  } else if (el.once && !el.onceProcessed) {
+    return genOnce(el, state)
+  } else if (el.for && !el.forProcessed) {
+    return genFor(el, state)
+  } else if (el.if && !el.ifProcessed) {
+    return genIf(el, state)
+  } else if (el.tag === 'template' && !el.slotTarget) {
+    return genChildren(el, state) || 'void 0'
+  } else if (el.tag === 'slot') {
+    return genSlot(el, state)
+  } else {
+    // component or element
+    var code;
+    if (el.component) {
+      code = genComponent(el.component, el, state);
+    } else {
+      var data = el.plain ? undefined : genData$2(el, state);
+
+      var children = el.inlineTemplate ? null : genChildren(el, state, true);
+      code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
+    }
+    // module transforms
+    for (var i = 0; i < state.transforms.length; i++) {
+      code = state.transforms[i](el, code);
+    }
+    return code
+  }
+}
+
+// hoist static sub-trees out
+function genStatic (el, state) {
+  el.staticProcessed = true;
+  state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
+}
+
+// v-once
+function genOnce (el, state) {
+  el.onceProcessed = true;
+  if (el.if && !el.ifProcessed) {
+    return genIf(el, state)
+  } else if (el.staticInFor) {
+    var key = '';
+    var parent = el.parent;
+    while (parent) {
+      if (parent.for) {
+        key = parent.key;
+        break
+      }
+      parent = parent.parent;
+    }
+    if (!key) {
+      "development" !== 'production' && state.warn(
+        "v-once can only be used inside v-for that is keyed. "
+      );
+      return genElement(el, state)
+    }
+    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
+  } else {
+    return genStatic(el, state)
+  }
+}
+
+function genIf (
+  el,
+  state,
+  altGen,
+  altEmpty
+) {
+  el.ifProcessed = true; // avoid recursion
+  return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
+}
+
+function genIfConditions (
+  conditions,
+  state,
+  altGen,
+  altEmpty
+) {
+  if (!conditions.length) {
+    return altEmpty || '_e()'
+  }
+
+  var condition = conditions.shift();
+  if (condition.exp) {
+    return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
+  } else {
+    return ("" + (genTernaryExp(condition.block)))
+  }
+
+  // v-if with v-once should generate code like (a)?_m(0):_m(1)
+  function genTernaryExp (el) {
+    return altGen
+      ? altGen(el, state)
+      : el.once
+        ? genOnce(el, state)
+        : genElement(el, state)
+  }
+}
+
+function genFor (
+  el,
+  state,
+  altGen,
+  altHelper
+) {
+  var exp = el.for;
+  var alias = el.alias;
+  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+
+  if ("development" !== 'production' &&
+    state.maybeComponent(el) &&
+    el.tag !== 'slot' &&
+    el.tag !== 'template' &&
+    !el.key
+  ) {
+    state.warn(
+      "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
+      "v-for should have explicit keys. " +
+      "See https://vuejs.org/guide/list.html#key for more info.",
+      true /* tip */
+    );
+  }
+
+  el.forProcessed = true; // avoid recursion
+  return (altHelper || '_l') + "((" + exp + ")," +
+    "function(" + alias + iterator1 + iterator2 + "){" +
+      "return " + ((altGen || genElement)(el, state)) +
+    '})'
+}
+
+function genData$2 (el, state) {
+  var data = '{';
+
+  // directives first.
+  // directives may mutate the el's other properties before they are generated.
+  var dirs = genDirectives(el, state);
+  if (dirs) { data += dirs + ','; }
+
+  // key
+  if (el.key) {
+    data += "key:" + (el.key) + ",";
+  }
+  // ref
+  if (el.ref) {
+    data += "ref:" + (el.ref) + ",";
+  }
+  if (el.refInFor) {
+    data += "refInFor:true,";
+  }
+  // pre
+  if (el.pre) {
+    data += "pre:true,";
+  }
+  // record original tag name for components using "is" attribute
+  if (el.component) {
+    data += "tag:\"" + (el.tag) + "\",";
+  }
+  // module data generation functions
+  for (var i = 0; i < state.dataGenFns.length; i++) {
+    data += state.dataGenFns[i](el);
+  }
+  // attributes
+  if (el.attrs) {
+    data += "attrs:{" + (genProps(el.attrs)) + "},";
+  }
+  // DOM props
+  if (el.props) {
+    data += "domProps:{" + (genProps(el.props)) + "},";
+  }
+  // event handlers
+  if (el.events) {
+    data += (genHandlers(el.events, false, state.warn)) + ",";
+  }
+  if (el.nativeEvents) {
+    data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
+  }
+  // slot target
+  // only for non-scoped slots
+  if (el.slotTarget && !el.slotScope) {
+    data += "slot:" + (el.slotTarget) + ",";
+  }
+  // scoped slots
+  if (el.scopedSlots) {
+    data += (genScopedSlots(el.scopedSlots, state)) + ",";
+  }
+  // component v-model
+  if (el.model) {
+    data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
+  }
+  // inline-template
+  if (el.inlineTemplate) {
+    var inlineTemplate = genInlineTemplate(el, state);
+    if (inlineTemplate) {
+      data += inlineTemplate + ",";
+    }
+  }
+  data = data.replace(/,$/, '') + '}';
+  // v-bind data wrap
+  if (el.wrapData) {
+    data = el.wrapData(data);
+  }
+  // v-on data wrap
+  if (el.wrapListeners) {
+    data = el.wrapListeners(data);
+  }
+  return data
+}
+
+function genDirectives (el, state) {
+  var dirs = el.directives;
+  if (!dirs) { return }
+  var res = 'directives:[';
+  var hasRuntime = false;
+  var i, l, dir, needRuntime;
+  for (i = 0, l = dirs.length; i < l; i++) {
+    dir = dirs[i];
+    needRuntime = true;
+    var gen = state.directives[dir.name];
+    if (gen) {
+      // compile-time directive that manipulates AST.
+      // returns true if it also needs a runtime counterpart.
+      needRuntime = !!gen(el, dir, state.warn);
+    }
+    if (needRuntime) {
+      hasRuntime = true;
+      res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
+    }
+  }
+  if (hasRuntime) {
+    return res.slice(0, -1) + ']'
+  }
+}
+
+function genInlineTemplate (el, state) {
+  var ast = el.children[0];
+  if ("development" !== 'production' && (
+    el.children.length !== 1 || ast.type !== 1
+  )) {
+    state.warn('Inline-template components must have exactly one child element.');
+  }
+  if (ast.type === 1) {
+    var inlineRenderFns = generate(ast, state.options);
+    return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
+  }
+}
+
+function genScopedSlots (
+  slots,
+  state
+) {
+  return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
+      return genScopedSlot(key, slots[key], state)
+    }).join(',')) + "])")
+}
+
+function genScopedSlot (
+  key,
+  el,
+  state
+) {
+  if (el.for && !el.forProcessed) {
+    return genForScopedSlot(key, el, state)
+  }
+  var fn = "function(" + (String(el.slotScope)) + "){" +
+    "return " + (el.tag === 'template'
+      ? el.if
+        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        : genChildren(el, state) || 'undefined'
+      : genElement(el, state)) + "}";
+  return ("{key:" + key + ",fn:" + fn + "}")
+}
+
+function genForScopedSlot (
+  key,
+  el,
+  state
+) {
+  var exp = el.for;
+  var alias = el.alias;
+  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+  el.forProcessed = true; // avoid recursion
+  return "_l((" + exp + ")," +
+    "function(" + alias + iterator1 + iterator2 + "){" +
+      "return " + (genScopedSlot(key, el, state)) +
+    '})'
+}
+
+function genChildren (
+  el,
+  state,
+  checkSkip,
+  altGenElement,
+  altGenNode
+) {
+  var children = el.children;
+  if (children.length) {
+    var el$1 = children[0];
+    // optimize single v-for
+    if (children.length === 1 &&
+      el$1.for &&
+      el$1.tag !== 'template' &&
+      el$1.tag !== 'slot'
+    ) {
+      return (altGenElement || genElement)(el$1, state)
+    }
+    var normalizationType = checkSkip
+      ? getNormalizationType(children, state.maybeComponent)
+      : 0;
+    var gen = altGenNode || genNode;
+    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
+  }
+}
+
+// determine the normalization needed for the children array.
+// 0: no normalization needed
+// 1: simple normalization needed (possible 1-level deep nested array)
+// 2: full normalization needed
+function getNormalizationType (
+  children,
+  maybeComponent
+) {
+  var res = 0;
+  for (var i = 0; i < children.length; i++) {
+    var el = children[i];
+    if (el.type !== 1) {
+      continue
+    }
+    if (needsNormalization(el) ||
+        (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
+      res = 2;
+      break
+    }
+    if (maybeComponent(el) ||
+        (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
+      res = 1;
+    }
+  }
+  return res
+}
+
+function needsNormalization (el) {
+  return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
+}
+
+function genNode (node, state) {
+  if (node.type === 1) {
+    return genElement(node, state)
+  } if (node.type === 3 && node.isComment) {
+    return genComment(node)
+  } else {
+    return genText(node)
+  }
+}
+
+function genText (text) {
+  return ("_v(" + (text.type === 2
+    ? text.expression // no need for () because already wrapped in _s()
+    : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
+}
+
+function genComment (comment) {
+  return ("_e(" + (JSON.stringify(comment.text)) + ")")
+}
+
+function genSlot (el, state) {
+  var slotName = el.slotName || '"default"';
+  var children = genChildren(el, state);
+  var res = "_t(" + slotName + (children ? ("," + children) : '');
+  var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
+  var bind$$1 = el.attrsMap['v-bind'];
+  if ((attrs || bind$$1) && !children) {
+    res += ",null";
+  }
+  if (attrs) {
+    res += "," + attrs;
+  }
+  if (bind$$1) {
+    res += (attrs ? '' : ',null') + "," + bind$$1;
+  }
+  return res + ')'
+}
+
+// componentName is el.component, take it as argument to shun flow's pessimistic refinement
+function genComponent (
+  componentName,
+  el,
+  state
+) {
+  var children = el.inlineTemplate ? null : genChildren(el, state, true);
+  return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
+}
+
+function genProps (props) {
+  var res = '';
+  for (var i = 0; i < props.length; i++) {
+    var prop = props[i];
+    /* istanbul ignore if */
+    {
+      res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    }
+  }
+  return res.slice(0, -1)
+}
+
+// #3895, #4268
+function transformSpecialNewlines (text) {
+  return text
+    .replace(/\u2028/g, '\\u2028')
+    .replace(/\u2029/g, '\\u2029')
+}
+
+/*  */
+
+// these keywords should not appear inside expressions, but operators like
+// typeof, instanceof and in are allowed
+var prohibitedKeywordRE = new RegExp('\\b' + (
+  'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
+  'super,throw,while,yield,delete,export,import,return,switch,default,' +
+  'extends,finally,continue,debugger,function,arguments'
+).split(',').join('\\b|\\b') + '\\b');
+
+// these unary operators should not be used as property/method names
+var unaryOperatorsRE = new RegExp('\\b' + (
+  'delete,typeof,void'
+).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
+
+// strip strings in expressions
+var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
+
+// detect problematic expressions in a template
+function detectErrors (ast) {
+  var errors = [];
+  if (ast) {
+    checkNode(ast, errors);
+  }
+  return errors
+}
+
+function checkNode (node, errors) {
+  if (node.type === 1) {
+    for (var name in node.attrsMap) {
+      if (dirRE.test(name)) {
+        var value = node.attrsMap[name];
+        if (value) {
+          if (name === 'v-for') {
+            checkFor(node, ("v-for=\"" + value + "\""), errors);
+          } else if (onRE.test(name)) {
+            checkEvent(value, (name + "=\"" + value + "\""), errors);
+          } else {
+            checkExpression(value, (name + "=\"" + value + "\""), errors);
+          }
+        }
+      }
+    }
+    if (node.children) {
+      for (var i = 0; i < node.children.length; i++) {
+        checkNode(node.children[i], errors);
+      }
+    }
+  } else if (node.type === 2) {
+    checkExpression(node.expression, node.text, errors);
+  }
+}
+
+function checkEvent (exp, text, errors) {
+  var stipped = exp.replace(stripStringRE, '');
+  var keywordMatch = stipped.match(unaryOperatorsRE);
+  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
+    errors.push(
+      "avoid using JavaScript unary operator as property name: " +
+      "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+    );
+  }
+  checkExpression(exp, text, errors);
+}
+
+function checkFor (node, text, errors) {
+  checkExpression(node.for || '', text, errors);
+  checkIdentifier(node.alias, 'v-for alias', text, errors);
+  checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
+  checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
+}
+
+function checkIdentifier (
+  ident,
+  type,
+  text,
+  errors
+) {
+  if (typeof ident === 'string') {
+    try {
+      new Function(("var " + ident + "=_"));
+    } catch (e) {
+      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+    }
+  }
+}
+
+function checkExpression (exp, text, errors) {
+  try {
+    new Function(("return " + exp));
+  } catch (e) {
+    var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
+    if (keywordMatch) {
+      errors.push(
+        "avoid using JavaScript keyword as property name: " +
+        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
+      );
+    } else {
+      errors.push(
+        "invalid expression: " + (e.message) + " in\n\n" +
+        "    " + exp + "\n\n" +
+        "  Raw expression: " + (text.trim()) + "\n"
+      );
+    }
+  }
+}
+
+/*  */
+
+function createFunction (code, errors) {
+  try {
+    return new Function(code)
+  } catch (err) {
+    errors.push({ err: err, code: code });
+    return noop
+  }
+}
+
+function createCompileToFunctionFn (compile) {
+  var cache = Object.create(null);
+
+  return function compileToFunctions (
+    template,
+    options,
+    vm
+  ) {
+    options = extend({}, options);
+    var warn$$1 = options.warn || warn;
+    delete options.warn;
+
+    /* istanbul ignore if */
+    {
+      // detect possible CSP restriction
+      try {
+        new Function('return 1');
+      } catch (e) {
+        if (e.toString().match(/unsafe-eval|CSP/)) {
+          warn$$1(
+            'It seems you are using the standalone build of Vue.js in an ' +
+            'environment with Content Security Policy that prohibits unsafe-eval. ' +
+            'The template compiler cannot work in this environment. Consider ' +
+            'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
+            'templates into render functions.'
+          );
+        }
+      }
+    }
+
+    // check cache
+    var key = options.delimiters
+      ? String(options.delimiters) + template
+      : template;
+    if (cache[key]) {
+      return cache[key]
+    }
+
+    // compile
+    var compiled = compile(template, options);
+
+    // check compilation errors/tips
+    {
+      if (compiled.errors && compiled.errors.length) {
+        warn$$1(
+          "Error compiling template:\n\n" + template + "\n\n" +
+          compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
+          vm
+        );
+      }
+      if (compiled.tips && compiled.tips.length) {
+        compiled.tips.forEach(function (msg) { return tip(msg, vm); });
+      }
+    }
+
+    // turn code into functions
+    var res = {};
+    var fnGenErrors = [];
+    res.render = createFunction(compiled.render, fnGenErrors);
+    res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
+      return createFunction(code, fnGenErrors)
+    });
+
+    // check function generation errors.
+    // this should only happen if there is a bug in the compiler itself.
+    // mostly for codegen development use
+    /* istanbul ignore if */
+    {
+      if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
+        warn$$1(
+          "Failed to generate render function:\n\n" +
+          fnGenErrors.map(function (ref) {
+            var err = ref.err;
+            var code = ref.code;
+
+            return ((err.toString()) + " in\n\n" + code + "\n");
+        }).join('\n'),
+          vm
+        );
+      }
+    }
+
+    return (cache[key] = res)
+  }
+}
+
+/*  */
+
+function createCompilerCreator (baseCompile) {
+  return function createCompiler (baseOptions) {
+    function compile (
+      template,
+      options
+    ) {
+      var finalOptions = Object.create(baseOptions);
+      var errors = [];
+      var tips = [];
+      finalOptions.warn = function (msg, tip) {
+        (tip ? tips : errors).push(msg);
+      };
+
+      if (options) {
+        // merge custom modules
+        if (options.modules) {
+          finalOptions.modules =
+            (baseOptions.modules || []).concat(options.modules);
+        }
+        // merge custom directives
+        if (options.directives) {
+          finalOptions.directives = extend(
+            Object.create(baseOptions.directives || null),
+            options.directives
+          );
+        }
+        // copy other options
+        for (var key in options) {
+          if (key !== 'modules' && key !== 'directives') {
+            finalOptions[key] = options[key];
+          }
+        }
+      }
+
+      var compiled = baseCompile(template, finalOptions);
+      {
+        errors.push.apply(errors, detectErrors(compiled.ast));
+      }
+      compiled.errors = errors;
+      compiled.tips = tips;
+      return compiled
+    }
+
+    return {
+      compile: compile,
+      compileToFunctions: createCompileToFunctionFn(compile)
+    }
+  }
+}
+
+/*  */
+
+// `createCompilerCreator` allows creating compilers that use alternative
+// parser/optimizer/codegen, e.g the SSR optimizing compiler.
+// Here we just export a default compiler using the default parts.
+var createCompiler = createCompilerCreator(function baseCompile (
+  template,
+  options
+) {
+  var ast = parse(template.trim(), options);
+  if (options.optimize !== false) {
+    optimize(ast, options);
+  }
+  var code = generate(ast, options);
+  return {
+    ast: ast,
+    render: code.render,
+    staticRenderFns: code.staticRenderFns
+  }
+});
+
+/*  */
+
+var ref$1 = createCompiler(baseOptions);
+var compileToFunctions = ref$1.compileToFunctions;
+
+/*  */
+
+// check whether current browser encodes a char inside attribute values
+var div;
+function getShouldDecode (href) {
+  div = div || document.createElement('div');
+  div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>";
+  return div.innerHTML.indexOf('&#10;') > 0
+}
+
+// #3663: IE encodes newlines inside attribute values while other browsers don't
+var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
+// #6828: chrome encodes content in a[href]
+var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
+
+/*  */
+
+var idToTemplate = cached(function (id) {
+  var el = query(id);
+  return el && el.innerHTML
+});
+
+var mount = Vue.prototype.$mount;
+Vue.prototype.$mount = function (
+  el,
+  hydrating
+) {
+  el = el && query(el);
+
+  /* istanbul ignore if */
+  if (el === document.body || el === document.documentElement) {
+    "development" !== 'production' && warn(
+      "Do not mount Vue to <html> or <body> - mount to normal elements instead."
+    );
+    return this
+  }
+
+  var options = this.$options;
+  // resolve template/el and convert to render function
+  if (!options.render) {
+    var template = options.template;
+    if (template) {
+      if (typeof template === 'string') {
+        if (template.charAt(0) === '#') {
+          template = idToTemplate(template);
+          /* istanbul ignore if */
+          if ("development" !== 'production' && !template) {
+            warn(
+              ("Template element not found or is empty: " + (options.template)),
+              this
+            );
+          }
+        }
+      } else if (template.nodeType) {
+        template = template.innerHTML;
+      } else {
+        {
+          warn('invalid template option:' + template, this);
+        }
+        return this
+      }
+    } else if (el) {
+      template = getOuterHTML(el);
+    }
+    if (template) {
+      /* istanbul ignore if */
+      if ("development" !== 'production' && config.performance && mark) {
+        mark('compile');
+      }
+
+      var ref = compileToFunctions(template, {
+        shouldDecodeNewlines: shouldDecodeNewlines,
+        shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
+        delimiters: options.delimiters,
+        comments: options.comments
+      }, this);
+      var render = ref.render;
+      var staticRenderFns = ref.staticRenderFns;
+      options.render = render;
+      options.staticRenderFns = staticRenderFns;
+
+      /* istanbul ignore if */
+      if ("development" !== 'production' && config.performance && mark) {
+        mark('compile end');
+        measure(("vue " + (this._name) + " compile"), 'compile', 'compile end');
+      }
+    }
+  }
+  return mount.call(this, el, hydrating)
+};
+
+/**
+ * Get outerHTML of elements, taking care
+ * of SVG elements in IE as well.
+ */
+function getOuterHTML (el) {
+  if (el.outerHTML) {
+    return el.outerHTML
+  } else {
+    var container = document.createElement('div');
+    container.appendChild(el.cloneNode(true));
+    return container.innerHTML
+  }
+}
+
+Vue.compile = compileToFunctions;
+
+return Vue;
+
+})));