CollectionView拖动排序和删除

Name		Name	Last commit message	Last commit date
Latest commit History 12 Commits
collectionPanViewTest.xcodeproj		collectionPanViewTest.xcodeproj
collectionPanViewTest		collectionPanViewTest
collectionPanViewTestTests		collectionPanViewTestTests
collectionPanViewTestUITests		collectionPanViewTestUITests
README.md		README.md
YTDragCollectionLayout.h		YTDragCollectionLayout.h
YTDragCollectionLayout.m		YTDragCollectionLayout.m

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