am 1e003892: am 355398f9: Merge changes from topic \'mwd-merge-050415\' into mnc-dev

* commit '1e00389206788b05cab4ac24343140c55f01ba31':
  VT related cleanup.
  Fix memory leak: remove a listener
  DO NOT MERGE Fix missing "manage conference" option.
  Upgrade / downgrade requests
  Incoming video calls - accept only 2-way calls.
tree: 71b0cd68e3eac9eceaa0f80c892084350df37c0a
  1. InCallUI/