* Supplied more adapter APIs for ItemViewBinder

- Added ItemViewBinder#onViewRecycled(holder)
- Added ItemViewBinder#onFailedToRecycleView(holder)
- Added ItemViewBinder#onViewAttachedToWindow(holder)
- Added ItemViewBinder#onViewDetachedFromWindow(holder)

* Added some @see links to binder in Java doc

* Tagged to v3.1.0-beta1

* Supplied AGP 3.0 support

* Updated sample-one2many.png

* Fixed some findbugs issues and improved code style

* Upgraded versionCode to 311