More sophisticated exporter that uses the OD directory to map user names to GUIDs and iterates over all calendars for a user.
More sophisticated exporter that uses the OD directory to map user names to GUIDs and iterates
over all calendars for a user.

git-svn-id: 81e381228600e5752b80483efd2b45b26c451ea2@3274 e27351fd-9f3e-4f54-a53b-843176b1656c

trevor/calendarserver,trevor/calendarserver,trevor/calendarserver