Git commits in Moodle 2.7.14 by Dan Marsden

commit 3b0357ec111139d9eeab3fb5cd947f551a5f248a
Author: Dan Marsden <dan@danmarsden.com>
Date:   Wed, 30 Mar 2016 05:03:25 +0800
Tag:    v2.7.14

MDL-53546 SCORM: Set window.opener to null