This patch implements "private URLs" for all site calendars. These are unique non guessable URLs (one per user) that one can subscribe to in all calendaring clients (including MS Outlook). This means that a calendar does not have to be exported (ie, made public) in order to subscribe to it. Marge calendars will appears in the ical feed and there is a link on the synoptic view.
|Create CALENDAR_OPAQUEURL table||RESOLVED|
|Enable opaque url subscriptions by default||RESOLVED|
|Opaque URL needs to end in .ics for Google Calendar support||Verified|