Author: Helen Foster
MDL-47031 Merge English strings from the en_fix language pack
http://git.moodle.org/gw?p=moodle.git;a=commit;h=f3bdb845c47a226db841040c33fe5eec7530a8a9
http://github.com/moodle/moodle/commit/f3bdb845c47a226db841040c33fe5eec7530a8a9
+ 2.6 en [nouserstobeadded,auth_ldap]
+ 2.6 en [enablecompletion_help,core_completion]
+ 2.6 en [iprestriction_help,core_webservice]