Git commits in Moodle 2.9.4 by Jetha Chan

commit 694b4d4274ffbeedee71a0c3ac999ff4a906b73b
Author: Jetha Chan <jetha@moodle.com>
Date:   Tue, 09 Jun 2015 17:12:31 +0800
Tag:    v2.9.4

MDL-37308 files: support transparency when not resizing; new unit test