* Exchange seems to require time zone information in ics files containing
event exceptions, although this is NOT the case for iCalendar, and appears
not to conform to VCALENDAR specifications
* This causes exceptions to be placed on the wrong date or perhaps even
ignored, depending on the circumstance
* This CL simply adds time zone information to all exception ics files
Bug: 2640878
Change-Id: Ibc614eb7a2c45e9e782b10be979d9892bbfc0029
8ba0728533