Renamed pickup_location to event, and put a membership expiry into membership log.  Also linked mayofestuser to membership_log
Fixed expiry
Changed used coupons to match orders by event, not date.  This will be applied to all reports.
Fixed order events
IMplemented an accordion
Fixed unit price bug
Got the graph working, but the membership data is messed (particularly the 2013/2014.. it's mixing it up, due to the migration being done poorly)