Merge changes Iddf5ef33,I1b718e30,I0c7386f6,I81069948,I3bec477d, ...

* changes:
  Update strings for Duo "Set up" and "Invite" buttons
  Hide emergency calls in the call log
  Simplifying implementation of the coalescing logic in the new call log.
  Updating Dialer v16 licenses.
  Use ContactsContract.PhoneLookup for invalid numbers in Cp2PhoneLookup.
  Add RTT call chat window.
  Updated T9 search bolding to include wrapping to the next word.
  Initial setup of voicemail error messages
  Automated rollback of changelist 178323108
  Add "delete" option in the 3-dot menu of the new call log