Git commits in Moodle 2.5.1 by Helen Foster

commit bb07f7eccea1aa8990cc54e10e9c29c6a036a03a
Author: Helen Foster <helen@moodle.org>
Date:   Tue, 02 Jul 2013 17:47:49 +0800
Tag:    v2.5.1

MDL-40439 Merge English strings from the en_fix language pack