added roll back loading for credentials
added the login button
moved the comment to the correct place
Merge branch 'cp0' into cp1
added class to button container
added cookie option in FB.init()
Merge branch 'cp0' into cp1
moved event handling outside.
trigger loaded event after the fb sdk loaded, instead of $()
added id to playgrounds
finished cp2
finished cp3
finished cp4 - friend request
Merge branch 'cp4'