Update makefile and gitignore

makefile

@@ -39,6 +39,8 @@ doble_initial:
 # --------------------------
 stackTests: stack.o test_stack.c $(unityfolder)/unity.c
 	$(CC) $(CFLAGS) -I$(unityfolder) -o stackTests test_stack.c stack.o $(unityfolder)/unity.c ${LDFLAGS}
+bintreeTests: bintree.o stack.o bintreeTest.c $(unityfolder)/unity.c
+	$(CC) $(CFLAGS) -I$(unityfolder) -o bintreeTests bintreeTest.c bintree.o stack.o $(unityfolder)/unity.c ${LDFLAGS}
 unitTests:
 	echo "needs to be implemented"
 
@@ -47,7 +49,7 @@ unitTests:
 # --------------------------
 clean:
 ifeq ($(OS),Windows_NT)
-	del /f *.o doble
+	del /f *.o doble doble_initial bintreeTests stackTests
 else
-	rm -f *.o doble
+	rm -f *.o doble doble_initial bintreeTests stackTests
 endif