soundcloud/facebook-ios-sdk — pull request #3 by nerdsRob (2012-11-23 16:49:59+00:00)
Title: Feature/fb session delegate

Introducing a session state delegate to get callbacks about relevant authentication events like session state changes
`- (void)fbSessionStateDidChange:(FBSessionState)state;`
finished authentication
`- (void)fbSessionDidFinish:(FBSession *)session; `
and the receiving of the access token for our OAuth Client
`- (void)fbSession:(FBSession *)session didReceiveAccessToken:(NSString *)token;`