Git commits in Moodle 2.7.0 by Pavel Sokolov

commit a66555328b49c2f0dbe0976d738ead18c7ed86b4
Author: Pavel Sokolov <pavel.m.sokolov@gmail.com>
Date:   Thu, 05 Dec 2013 15:56:14 +0800
Tag:    v2.7.0-beta

MDL-43199 assign: fix js error when expanding comments for non editing teachers in assign grading table