add div changing, win result socket, switch back to chat room
fixed: only players with result will trigger result function.
merge from yvonne
fixed: only players with result will trigger result function.Merge branch 'feature/dev-tang' into feature/dev-yuyu

Conflicts:
	app.js
	public/js/main.js
	views/index.jade
fix weird stuff
fixed: weird committing error
fixed: only result player gets result message
colorful chatroom
Merge branch 'feature/dev-yuyu' into feature/dev-tang