Martin Andersson 59fc26f821 calendar: Rebuild the calendar when the time zone changes
A time zone change can cause the date to change so we need to clear
SpiderMonkey's time zone cache and rebuild the calendar.

https://bugzilla.gnome.org/show_bug.cgi?id=678507
2017-10-04 16:44:07 +02:00
..
2017-08-10 20:16:06 +02:00