Author: Mark Nelson
MDL-61920 ltiservice_toolproxy: implement privacy provider
http://git.moodle.org/gw?p=moodle.git;a=commit;h=897a6e824f7a4f31740c83978e0beac6c11c21c1
http://github.com/moodle/moodle/commit/897a6e824f7a4f31740c83978e0beac6c11c21c1
+ 3.5 en [privacy:metadata,ltiservice_toolproxy]