Adds devise views
Adds username to user model
Embeds sign in on landing
Adds game center page and lists users
Fixes sign in
Adds flash messages from devise
Game center users online list
Adds create game page
Fixes sign up issue
Sets up HABTM between users and games
Displays users on game show page
Displays current games in game center
Limits games to 3 to 6 players
Merge pull request #1 from maabernethy/game-center

Game center