use PSTCollectionViewDelegateFlowLayout collectionView:layout:insetForSectionAtIndex: if implemented
use PSTCollectionViewDelegateFlowLayout collectionView:layout:insetForSectionAtIndex: if implemented

CorzFree/PSTCollectionView,ba01ei/PSTImprovedCollectionView,godLoveLucifer/PSTCollectionView,Amnysia/PSTCollectionView,niuxinghua/PSTCollectionView,Anish-kumar-dev/PSTCollectionView,steipete/PSTCollectionView,thevuuranusls/PSTCollectionView,StephaneDelcroix/PSTCollectionView,jianwoo/PSTCollectionView,Kevin775263419/PSTCollectionView,StephaneDelcroix/PSTCollectionView,zjh171/PSTCollectionView,zace-yuan/PSTCollectionView