Added images and links for the lobby.
Cleaning up files.
Merge branch 'master' of github.com:williams4027/webapps-final-proj

Conflicts:
	RPS/app/controllers/game_controller.rb
	RPS/app/views/game/submit.html.erb~
	RPS/app/views/game/submitChallenge.html.erb
	RPS/app/views/game/submitChallenge.html.erb~
	RPS/app/views/login/index.html~