Git commits in Moodle 2.8.6 by Helen Foster

commit cdf4ba9549ae1ca013ba12232f54aac3b1210b86
Author: Helen Foster <helen@moodle.org>
Date:   Thu, 30 Apr 2015 05:22:36 +0800
Tag:    v2.8.6

MDL-50033 lang: Merge English strings from the en_fix language pack