ordering registrations by schedule start time first, then other fields
styled multiple select admin widget
broke barteritem inline into two classes, readonly one for editing and one for adding,
fixed venue initial country and state fields
changed BarterItem's schedule verbose name so it's consistent throughout the platform
change address_1 versbose name
added courses taught and taken counts as db fields
changed organizer-branch label
barteritem qs was returned via registration so it returned clones, fixed it.
added post_save signals to proxy schedule models, migration syntax edits