Git commits in Moodle 2.6.x by Andrew Schmadel

commit 53f93548c781579d1589eac8d21f3b8c4c59e03d
Author: Andrew Schmadel <aschmadel@learningobjects.com>
Date:   Sat, 23 Aug 2014 07:09:18 +0800
Tag:    v2.6.6

MDL-46844 Embed LTI External Tools with an IFrame