Git commits in Moodle 2.5.4 by Jenny Gray

commit af84623f44dda2854004e26208bf21357f19c9a5
Author: Jenny Gray <j.m.gray@open.ac.uk>
Date:   Tue, 03 Dec 2013 17:45:14 +0800
Tag:    v2.5.4

MDL-43135 Guest Enrol: new language string for with key icon