Blacklist /admin/ in robots.txt
Add new reservation export filter: occurs_on

Expects a date in YYYY-MM-DD form and restricts the matching
reservations to ones with an occurrence on the given date
Add booked_for_user_email to reservation export
Fix iterdays wrong days when sTime > eTime
Don't choke on non-ASCII event rooms/locations
Fix error when deleted contribs in speaker list