Location for CalendarAnnouncements

[sekjal]

It would be a nice enhancement to have Location as an option for CalendarAnnouncements. This would allow Location information from ICS feeds to be used (since the events are mapped to CalendarAnnouncements before mixing into the Calendar's overall events).

Perhaps moving Location to CalendarDateTime? This would also allow the same event to have different locations for its different instances (2016-03-01 6am - 8am in Room 123, 2016-03-02 4pm - 5pm in Room XYZ).