Merge branch 'master' of https://github.com/hasadna/Open-Knesset into mks-events-google-calendar-scraping-3
Improving the google calendar interface #279

Stop the url and last sync token in the persons.Person model so it'll be
open to more users and store the events in events.Event.
fixed bug where cancelled events were not cancelled + added inline person edit for mk to set the calendar url