Merge changes I801090d9,I638ef7ce into nyc-dev
am: 1eaef1a

* commit '1eaef1a01e70de9f567511ca0705e79403d902b9':
  SupportLeanbackShowcase: add Section and Divider
  SupportLeanbackShowcase: remove properietary resources

Change-Id: I3cee9d66beac298b28a2f15e07cd6e405b4a25f6