[Android] Get rid of some unnecessary onAttach overrides in AboutFragment, VideoSettingsFragment, and FolderBrowser. These can just be replaced with calls to getActivity().
[Android] Bump the targetSdkVersion in the AndroidManifest XML file to 19 (KitKat). Nothing we do would require compatibility behaviors to be enabled to maintain forward compatibility.
[Android-overlay] Support touch screen axises in native. Have a non-configurable main joystick on screen at this point.
Make sure to add our resources for the joystick.