Git commits in Moodle 3.0.1 by Pavel Sokolov

commit 2748bf5900993cf633fcc6530776c4cf889feb60
Author: Pavel Sokolov <pavel.m.sokolov@gmail.com>
Date:   Thu, 05 Dec 2013 21:00:34 +0800
Tag:    v3.0.1

MDL-43069 assign: prevent JS error on grading table