Author: Mihail Geshoski
MDL-61903 webservice: Implement null privacy provider
Implement null privacy provider to rest, soap and xmlrpc webservice plugins.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=e217c239fd74340c9230e997881ef6c9f952188d
http://github.com/moodle/moodle/commit/e217c239fd74340c9230e997881ef6c9f952188d
+ 3.3 en [privacy:metadata,webservice_rest]
+ 3.3 en [privacy:metadata,webservice_soap]
+ 3.3 en [privacy:metadata,webservice_xmlrpc]