Author: Andrew Nicols
MDL-61307 core: Define a new privacy component
http://git.moodle.org/gw?p=moodle.git;a=commit;h=5a146aa633269053bf4245eb43c3bbc7461827aa
http://github.com/moodle/moodle/commit/5a146aa633269053bf4245eb43c3bbc7461827aa
+ 3.3 en [userpreferences,core]