Merge changes I1360b7ee,I587f5f4d,I8cb26827,Ib8766a89,I952f4935

* changes:
  Implement System blocked number
  Don't let the FAB obscure the last item of speed dial/call log/voicemail.
  Changed PhoneLookup#lookup to accept a DialerPhoneNumber.
  For call log entry labels, remove the dot after abbreviated time units.
  Implement blocking commands