Git commits in Moodle 2.7.1 by Ray Morris

commit f0538cee92a4156abd82e0db9cf7f2f969b46104
Author: Ray Morris <Ray.Morris@teex.tamu.edu>
Date:   Fri, 27 Jun 2014 23:00:11 +0800
Tag:    v2.7.1

MDL-4013 Question bank: Category selector renders as nested form (invalid html)