add selected cell image
add selected cell image

danielmartinprieto/JNWCollectionView,kettch/JNWCollectionView,konstantinpavlikhin/JNWCollectionView,hachidorii/JNWCollectionView,chriseidhof/JNWCollectionView,Spark-Xl/JNWCollectionView,regexident/JNWCollectionView,Deadpikle/JNWCollectionView,jwilling/JNWCollectionView