Improve debugging information for view controllers
Fix crash when popping view controllers

Code was incorrectly removed when migrating to ARC
Remove code not relevant anymore for >= iOS 7
Remove base 64 encoding methods

Now provided by the iOS SDK, see NSData (NSDataBase64Encoding) category
Update mogenerator to 1.28
Remove code not relevant anymore for >= iOS 7
Remove irrelevant methods for flat design
Remove code not relevant anymore for >= iOS 7
Remove HLSUUID function, use NSUUID class instead
Remove code not relevant anymore for >= iOS 7
Update readme