Fix #2457665 (Guests don't appear in Exchange events)

* The "hasAttendeeData" column needs to be set to 1 for all Exchange
  events (the case in which the value would be zero doesn't pertain
  to Exchange events)
* Also, move code for organizer attendee to the proper place

Bug: 2457665
Change-Id: I3260f883135bb222ce475ccbabf5ba151ab7f557
1 file changed