am ec4e711b: am 17d21485: Merge changes from topic \'merge-dr1-063015\' into mnc-dr-dev

* commit 'ec4e711b1a9393a02dc060bbdb43e1023c42bf8d':
  Display Supplementary Service Notification
  IMS: Add support for MO ims phantom call.
  SRVCC Conference call scenarios with mid-call enabled.
  Set extras
  Rename VoLTE/WFC enable API to available - add VT available API.