Git commits in Moodle 2.7.8 by Viduranga Wijesooriya

commit 5ae7cc62559cefbefcc49ca54cc30dad5966203d
Author: Viduranga Wijesooriya <vpowerrc@gmail.com>
Date:   Thu, 26 Mar 2015 03:33:45 +0800
Tag:    v2.7.8

MDL-49477 availability_grade-form: checkbox disable problem fixed