itemSize can now also be a callback function returning the size (removed getItemSize option)
itemSize can now also be a callback function returning the size (removed getItemSize option)

okland/famous-flex,Bizboard/famous-flex,IjzerenHein/famous-flex,ShawnOceanHu/famous-flex,edgar-humberto/famous-flex,SeanOceanHu/famous-flex,hwd91c/famous-flex,ziteboard/famous-flex