automatic cache repeating events after an update

apps/calendar/appinfo/update.php

@@ -15,3 +15,8 @@ if (version_compare($installedVersion, '0.2.1', '<')) {
 		$r = $stmt->execute(array($color,$id));
 	}
 }
+$calendars = OC_Calendar_Calendar::allCalendars(OCP\USER::getUser());
+foreach($calendars as $calendar){
+	OC_Calendar_Repeat::cleancalendar($calendar['id']);
+	OC_Calendar_Repeat::generatecalendar($calendar['id']);
+}