jessesquires/JSQMessagesViewController — pull request #428 by trakov (2014-08-01 08:27:35+00:00)
Title: Added dummy for JSQMessagesCollectionViewDelegateFlowLayout method

This methods are optional, but this doesn't checked. May be, do we make check - [self.delegate respondsToSelector:@selector(method)]; ?

Without these changes, my app crashed.