Large clean up of code comments, and do some small refactoring

Fix a bug in GamesHelper end of game notification message
Implement realtime updating of open games list (lobby)

Also send pop-up notice to creator of game when their game is joined
(if they are in the lobby)
Appropriately rename file containing scoring module specs

Also rename sockjs client wrapper file
Create nicely formatted, informative readme

Change name of redistogo_url vars to simply redis_url