am a52418bc: am 1375a1a6: Merge "Only show voicemail tab if there is at least one active provider."

* commit 'a52418bcb174108202838b8ebf86aa16efc1b46e':
tree: 967f2714b7c695a2c8690d8099672ae2c639bbb8
  1. res/
  2. src/
  3. tests/
  4. Android.mk
  5. AndroidManifest.xml
  6. proguard.flags