E1904 Issues related to topic deadlines
The following modifications were made so far:
1. Copied in some code from the previous semester's implementation of this project (they didn't do it properly and weren't permitted to check-in)
2. Successfully recreated Expertiza issue #98
3. Added field auto_dropped_from_waitlist to SignedUpTeam
4. When checking whether a team needs to be removed from the waitlist, looped through all waitlisted teams on all topics for which the drop topic deadline has passed
5. Renamed the update_is_waitlisted method to clear_waitlisted_teams_for_topic to better reflect what the method does
6. Verified Expertiza issue #98 has been fixed
7. Tested to ensure things work if it’s a staggered deadline assignment
8. Updated documentation on wiki