The red "away" dot is not well explained right now, and will presumably become more frequent once Calendar unprototypes.
[X] On profiles, show the red dot next to "Away until..." so the same visual element is present in both places. Maybe make this element more clear/explicit, too.
[X] On hovercards, show the dot too.
[X] Move "Calendar" profile widget above "Badges" profile widget.
There's some infrastructure cleanup to do:
[X] Remove all obsolete columns from CalendarEvent table.
[X] Remove all the old "Holiday" stuff -- we might implement this in some form eventually, but the existing approach doesn't make sense anymore.
The main Calendar guide should get fleshed out:
[ ] Put words in "Calendar User Guide".
Action dropdown:
[ ] Maybe put a "Cancel Event" in the action dropdown?
[ ] Maybe put RSVP stuff in the action dropdown?
[ ] Make sure the action dropdown behaves reasonably for recurring events.
Mail:
[ ] Reminder mail is still really rough.
[ ] Normal event mail includes the description in every message, which is abnormal/nonstandard.
Recurring events:
[ ] There's a bug with making an event recurring in handling the "Until" control.
[ ] There's a bug with removing the "Until" value from a recurring event.