Author: Helen Foster
MDL-57563 lang: Merge English strings from the en_fix language pack
http://git.moodle.org/gw?p=moodle.git;a=commit;h=530656cedb3eec9fef39bd4678167afd1f71b4c2
http://github.com/moodle/moodle/commit/530656cedb3eec9fef39bd4678167afd1f71b4c2
+ 3.1 en [additionalhtml_desc,core_admin]
+ 3.1 en [newsitemsnumber_help,core]