Git commits in Moodle 2.9.1 by Helen Foster

commit 497e490a6b31c0f5bd7bb98f75a81c7b3d63fb55
Author: Helen Foster <helen@moodle.org>
Date:   Fri, 19 Jun 2015 18:13:48 +0800
Tag:    v2.9.1

MDL-50622 lang: Merge English strings from the en_fix language pack