Translate to master again:

Niklas Laxström (2):
      Replace direct access to mTitle with getTitle()
      Make the All tab selectable again

Santhosh Thottingal (3):
      Fix error when group id has colon
      Do not show 'null' as translation for untranslated messages
      Do not change null translations to empty string

Change-Id: I482f9b19c4a7e195ab3c5100ff6a441aa6221e1b