Implemented - (UIView*)viewForItemAtIndex:(NSInteger)index;
Implemented - (void)scrollToItemAtIndex:(NSInteger)index atScrollPosition:(UICollectionViewScrollPosition)scrollPosition animated:(BOOL)animated{
Implemented - (GAMultiScrollingCollectionViewCell*)cellForItemAtIndex:(NSInteger)index;
[FIX] Bug when was decelerating to top
[FIX] DragToTop Icon when scrolling is hiding and showing the right way