Git commits in Moodle 2.7.4 by Oleg Demeshev

commit 5b5f07ac398bc2a1913975d0bce86123939897da
Author: Oleg Demeshev <oleg.demeshev@totaralms.com>
Date:   Tue, 04 Nov 2014 07:52:19 +0800
Tag:    v2.7.4

MDL-47993 calendar: Fix ical import Microsoft calendar issue