• Fixed: Issue 220: Calendar-query filters may fail when filtering on alarms, if
  an overridden event has it's alarm removed.
• Fixed: Compatibility for OS/X 10.8 iCal in the IMipHandler.
• Fixed: Issue 222: beforeWriteContent shouldn't be called for lock requests.
• Fixed: Problem with POST requests to the outbox if mailto: was not lower
  cased.
• Fixed: Yearly recurrence rule expansion on leap-days no behaves correctly.
• Fixed: Correctly checking if recurring, all-day events with no dtstart fall in
  a timerange if the start of the time-range exceeds the start of the instance
  of an event, but not the end.
• Fixed: All-day recurring events wouldn't match if an occurence ended exactly
  on the start of a time-range.
• Fixed: HTTP basic auth did not correctly deal with passwords containing colons
  on some servers.
• Fixed: Issue 228: DTEND is now non-inclusive for all-day events in the
  calendar-query REPORT and free-busy calculations.