Merge changes I6da93a4c,I5e987ac6,I104da410,Ia4ff718c,I7b837ca8 into nyc-dev

* changes:
  AccelerometerPlay: Wrap with samples template engine
  AccelerometerPlay: Add launcher icon
  Misc updates to AccelerometerPlayActivity
  Convert AccelerometerPlay sample to use Gradle build system
  Move AccelerometerPlay sample from development/samples