fixed full height background on sign up
added join game button
Merge branch 'registration_ready' of github.com:Chandler/flesh into registration_ready
if user is not in a game, displays link to discovery page
Merge branch 'registration_ready' of https://github.com/Chandler/flesh into registration_ready
remove ember auth from bower
Merge branch 'master' of https://github.com/Chandler/flesh