Git commits in Moodle 2.7.2 by sam marshall

commit 648cc055c2b0e66368f7ccec47878927d02a2d21
Author: sam marshall <s.marshall@open.ac.uk>
Date:   Wed, 30 Jul 2014 01:32:22 +0800
Tag:    v2.7.2

MDL-46414 Conditional availability: Dropdowns not set correctly when editing in IE