Author: Adrian Greeve
MDL-63566 tool_dataprivacy: New interface check for userlist.
This adds another check to see if the plugins are implementing the
new core_userlist_provider.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=63ca7583d622e5a4d48a3bda0af7ffd61466c969
http://github.com/moodle/moodle/commit/63ca7583d622e5a4d48a3bda0af7ffd61466c969
+ 3.4 en [userlistnoncompliant,tool_dataprivacy]
+ 3.4 en [userlistexplanation,tool_dataprivacy]