Git commits in Moodle 3.4.0 by Soon-Systems

commit 231ddd5a8dc1a6ee59a3b8eba9869960f814e723
Author: Soon-Systems <moodle-dev@soon-systems.de>
Date:   Tue, 07 Feb 2017 16:28:51 +0800
Tag:    v3.4.0-beta

MDL-54887 calendar: Format summary + description of an event for export