Author: Koen Roggemans
MDL-29103 web service strings improvement
http://git.moodle.org/gw?p=moodle.git;a=commit;h=bc861f559d31133a2b105d868728b224a7b1265f
http://github.com/moodle/moodle/commit/bc861f559d31133a2b105d868728b224a7b1265f
+ 2.2 en [enablemobilewebservice,core_admin]
+ 2.2 en [onesystemcontrolling,core_webservice]
+ 2.2 en [onesystemcontrollingdescription,core_webservice]