Adds class for base64 encoding.
Adds method for conversion NSData to Flash's BitmapData
Refactors getContactsAsync() due to performance reason, now contacts are retrieved as JSON without thumbnail that is retrieved in separated call (this functionality works but its optimization is not finished).
Refactors getContacts(), now contacts are created as FREObject directly without conversion from NS.
Adds method getContactThumbnail(recordId:int):BitmapData
Improves Xcode run script for ContentDebug application, now it can package ANE and IPA files.