New event model and rudimentary support for it
Updates to reduce icecube use
Deleting a booking now deletes all related events
Track the staff user creating the booking. Resolves #5.
Lots of time zone support. Events now stored using UTC time. Resolves #17. Resolves #71.
Main calendar now truncates title to 5 items. Resolves #73
Fixed some busted logic looking for active events. Resolves #83.
Fixes #81. I'm an idiot
Better validation on equipment creation. Fixes #78
Show action now works from equipment modal. Fixes #80.
Tooltips used to show contents of a piece of equipment