fixed small bugs

src/SnakeBot.java

 
 public class SnakeBot extends Bot{
     private String moves = "";
-    boolean frontIsBlocked, backIsBlocked, leftIsBlocked, rightIsBlocked, trapped;
+    private boolean frontIsBlocked, backIsBlocked, leftIsBlocked, rightIsBlocked, trapped;
     private char previousTurn = '<';
     private int spiralFactor = 1;
     private char spiralDirection = '>';
     private boolean goesForward = true;
     public static void main(String[] args) {
-        Bot SnakeBot = new SnakeBot(args);
-        SnakeBot.run();
+        Bot snakeBot = new SnakeBot(args);
+        snakeBot.run();
     }
 
     protected SnakeBot(String[] args) {