am a4d451b5: Add the artist name to the key for the \'unknown\' album, so we can distinguish between unknown albums by different artists, but more importantly so we don\'t pick any random artist as the \'owner\' of the unknown album.

Merge commit 'a4d451b5aecc8b2aed0bc6ea341e097697aeeeb2'

* commit 'a4d451b5aecc8b2aed0bc6ea341e097697aeeeb2':
  Add the artist name to the key for the 'unknown' album, so we can
tree: 447bc19cec3db705c23ba6209be99a18b82e169e
  1. res/
  2. src/
  3. Android.mk
  4. AndroidManifest.xml
  5. MODULE_LICENSE_APACHE2
  6. NOTICE