Developer credits
Git commits in Moodle 2.9.0 by Avi Levy
commit 573558af5eb8a30b67f49e40444b95cec34be343 Author: Avi Levy <Avi@admintheweb.com> Date: Tue, 18 Nov 2014 20:01:27 +0800 Tag: v2.9.0-beta MDL-47037 grader_gradereport: Enable sort in other language then English