add move event for test
Chatroom demo
add div changing, win result socket, switch back to chat room
add start game event, move event (include update players position), broadcast event(player info) and player disconnect event.
fixed: only players with result will trigger result function.
Merge from dev-yvonne
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
Fixed background cannot fit window
Merge branch 'feature/dev-yuyu' into feature/dev-tang
Merge branch 'feature/dev-yvonne' into feature/dev-tang

Conflicts:
	app.js
	public/images/Chatting_Background.png
	public/js/main.js
	public/stylesheets/style.css
	views/index.jade
	views/layout.jade
Merge branch 'feature/dev-eddie' into feature/dev-tang

Conflicts:
	app.js
	public/js/main.js
	views/index.jade
	views/layout.jade
update chatroom
Fixed missing gameMove.js
Merge branch 'develop' into feature/dev-charles-merged

Conflicts:
	app.js
	public/js/main.js
	views/index.jade
update send message