Bug Fixes
- keyField issue for class instances, fix #770 (#771) (1559ca8)
- RecycleScroller: gridItems is undefined when scrollToItem, fix #773 (#761) (7c809ad)
- sorting views not working, #772 (0b199d1)
- view not unused if item no longer present, fix #774 (bd51403)
- views not reused correctly (d5a8d75)