Continued work on Android
* Rename TopTabsLayout to TopTabsViewPager
* Pass ScrollEventListener from component
* Change ViewController.view to protected
* Don't keep ref to view in ComponentController
* Pull IReactView and ReactViewCreator to separate classes
* Ensure ToolBar.menu is created before clearing menu items
* Unmount react view before destroy
* Let TopTabsController set mediator in view visibility handling
* upstream merge
* Fixed bad merge
* More bad merges
* Mostly done, however a few properties missing and tests remain.
* async icons loading
* Left button
* Whoops!
* Added button size
* updated docs
* refactor
* Rebase fixes
* Rebase fixes
* rebase fix
* Rebase fixes
* rebase fixes
* reset contributing