Produkt/PDKTCollectionViewWaterfallLayout — pull request #9 by fillito (2014-05-12 17:40:21+00:00)
Title: Missing method layoutAttributesForItemAtIndexPath causes a crash

If you try to jump directly to a very far indexpath (or really fast scrolling), the fact that layoutAttributesForItemAtIndexPath: method was not implemented causes a crash because no UICollectionViewLayoutAttributes was returned.