Cleanup
Cleanup
Removing the need for the _id && _ids everywhere
Cleanup old code, improve existing

 * Ensure ids passed to the removal_requests are valid
 * Use query.count() instead of len(query.all()) when calculating the number of attendees already in a table
Right way around :P
Cleanup
Inform the user if there are no removal requests in existance
Attempted to comply with the MVC idealogy a little more; still needs work though