Author: Koen Roggemans
MDL-29103 web service strings improvement
http://git.moodle.org/gw?p=moodle.git;a=commit;h=61935d8ed029e0a312f8e7b0a134b8d059232b27
http://github.com/moodle/moodle/commit/61935d8ed029e0a312f8e7b0a134b8d059232b27
+ 2.3 en [enablemobilewebservice,core_admin]
+ 2.3 en [onesystemcontrolling,core_webservice]
+ 2.3 en [onesystemcontrollingdescription,core_webservice]