- #657: Migration script would break when coming a cross an iCalendar object
with no UID. - #691: Workaround for broken Windows Phone client.
- Fixed a whole bunch of incorrect php docblocks.
- The zip release ships with sabre/vobject 3.4.5,
sabre/http 4.0.0, sabre/event 2.0.2,
sabre/uri 1.0.1 and sabre/xml 1.1.0.