Git commits in Moodle 2.7.4 by Helen Foster

commit bdc83459f7c46809cb2d9c1c5c0c2b8902bb8a18
Author: Helen Foster <helen@moodle.org>
Date:   Wed, 07 Jan 2015 05:01:57 +0800
Tag:    v2.7.4

MDL-48748 lang: Merge English strings from the en_fix language pack