Added ActivityListViewController and renamed it's view
Mimicing UIActivity in OWActivity
Moving MailDelegate to MailActivity
Using new activity API
Moving view to listView
Removing helpers, implementing activity performing methods
Updated properties
Naming the activityViewController the delegate
Added completionHandler
Removing old methods
Moving the viewController presenting logic of MailActivity to new Activity API
Implementing new API for TwitterActivity
Default behavior is to call activityDidFinish directly
Removed unused activities
Adopting all activities to new UIActivity-like API
Using the new activityTitle and activityImage API's
Mimicing the UIActivityViewController constructor
Not using userInfo anymore
Enabling new UIActivity-like API
Using UIActivityViewController-Style completionHandler