Initial commit.
Initial faye configuration.
Heroku changes
Add retro.
Add landing page.
Add sticky creation and deletion.
Change redirect
Add current retro.

Also associate created sticky with the retro.
Fix background link image.
Add user to retro.
Fixes in add user to retro.
Remove stickies using websockets.
Isolate stickies by retro.
Add user to sticky when creating.
Add Procfile and lock ruby version.
Notify when a user joins.
Add retro page header
Add group creation and removal.
JS - create stickies and groups
Add behavior for user list.