Git commits in Moodle 3.0.4 by sam marshall

commit c32962f3184c03155c9fa19f9a77a353dda74bb3
Author: sam marshall <s.marshall@open.ac.uk>
Date:   Fri, 18 Mar 2016 21:44:50 +0800
Tag:    v3.0.4

MDL-53548 Accessibility: Block show/hide keyboard access broken