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=28c9a1993d111e7d38f2832e1f3c670e375764bc
http://github.com/moodle/moodle/commit/28c9a1993d111e7d38f2832e1f3c670e375764bc
+ 2.7 en [nouserstobeadded,auth_ldap]
+ 2.7 en [enablecompletion_help,core_completion]
+ 2.7 en [iprestriction_help,core_webservice]