Merge changes I73982924,Ic0747302,I8202a760,Icd66f8eb,I17091560, ...

* changes:
  Quick fix recursively importing.
  Add impression to track when users explicitly disable assisted dialing.
  Initialize executors before updating change PIN state
  Remove assert on StubVoicemailClient.addActivationStateListener()
  Implement SIM selection dialog
  Clear pendingAction when pausing PreCallCoordinator
  Add fast database populating button for benefit of testing.