m8: High-res audio support

Change-Id: I0bea6a9133fc67b728b488056495aeaf496fa2a4
(cherry picked from commit 1fb9fb8d110175bfb5cd4af443404d0e198ceb23)
Dotcase: Improve Hangouts sprite

Change-Id: I5d0e34d9e313ab3ec1523b26cbe1a1cad9daa122
(cherry picked from commit 5023d53009e0b050a8468581b346227be37ebb17)
Dotcase: Add support for couples apps

Change-Id: I72a77f0fcdeed521d1617cb1e0d98f10ead5d35e
(cherry picked from commit 7bd6f4384fdf939d50f0e128d9fe56947a9526a4)