Make sure _SYNC_LOCAL_ID is in the entity projection map

* This column was excluded from the projection map, presumably via an
  oversight.
* The Exchange sync adapter requires this for sending meeting invite
  change emails to attendees
* Remove two superfluous casts, and add an @Override to run

Change-Id: If515f9fc4ad0a2fcd59f93f644f6c104bdbd14e9
1 file changed