Git commits in Moodle 2.8.4 by Helen Foster

commit b907bc26f6c76b67bec8e14b8d166582f3b30cb9
Author: Helen Foster <helen@moodle.org>
Date:   Tue, 24 Feb 2015 04:15:18 +0800
Tag:    v2.8.4

MDL-49241 lang: Merge English strings from the en_fix language pack