I have committed the changes to allow unofficial events. Users can create them, only modify their own and anyone can view them. If a user has admin event edit permissions they can modify any unofficial events. The events are displayed as separate lists in the calendar. We still need some visual clue for the signup page.

This completes my todo list for the 2.1 release. So I've started looking into the in-game addon. I'm trying to find some info about the API for the WotLK event calender to see if we can use that. Otherwise I'll have to try hacking out my own.