Edited ArrayChess & Square

ArrayChess now has more highlighting methods and Square has some more
necessary variables and get/set methods.
Blah

commit
Merge branch 'master' of https://github.com/genjinoguchi/NewlyChosen

Conflicts:
	ArrayChess.class
	ArrayChess.java
	Board$BoardPanel.class
	Board.class
	Board.java
	Chess.class
	Square.class
	Square.java