merge from open-source master

Change-Id: Ib04e99f47b43622005a7fe9c635008b2d91a9a8a
tree: 787958b87033fd0296c554c7c149a1527b3a3cf2
  1. Tremolo/
  2. Android.mk
  3. CleanSpec.mk
  4. MODULE_LICENSE_BSD_LIKE
  5. NOTICE
  6. README