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Extra --help text explaining how to print debug to stdout
Properly handle day rollover in date/time adjust widget: Bug #739327

The date/time adjustment widget ignored rollover in the hours from
11pm to 12am, meaning the adjusted date would become (say) Oct 1 11pm
to Oct 1 12am.  This is not what the user expects, so now the hour
widget is "locked" to the date when rollover occurs.
Correctly determine date of event start/end in Week view: Bug #739250

Week view changes to stack events didn't convert event start/end times
to local timezone when comparing dates, causing issue with events
stored in UTC (or other non-local timezones) that straddled midnight.
Support DURATION when DTEND not present: Bug #737709

DTEND is optional in VEVENTs.  If not present, iCal specifies rules
for determining it, including using DURATION.
Properly move event between calendars: Bug #739164

Component.Instance allowed for callers to directly change the
Backing.CalendarSource of an instance.  This caused comparison and
hash problems when the event was to be removed from the view
collections.  Now that Instance clones are used in editing, it's not
necessary to allow changing the calendar source. Instead, the calendar
source is simply used to create/update/delete the clone as appropriate
and the subscription manager will report changes to the view.
Merge branch 'master' into wip/731543-attendees
Move file
Input validation