Change LHC RBB style to CERN Committee
Make Cern Committee style more readable
Fix css for long contribution titles

* Limit contribution title in CERN Committee style
* Add padding to itemTime
Preselect room when booking for event with a room
Fix accepting prebooking with colliding prebookings
Improve 'Conflicts at the same time'

- Only show header if there are actually conflicts
- Remove ugly spaces inside parentheses
Fix booking search for both cancelled & rejected

Since a booking cannot be have both states at the same time, it makes
sense to search for bookings in either state if both are selected
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
Fix error with native NotFound exception