Author: Claude Vervoort
MDL-67301 mod_lti: dynamic registration
http://git.moodle.org/gw?p=moodle.git;a=commit;h=84e90d5db4c7a95bffeafdb2929b6c6ffbfa8312
http://github.com/moodle/moodle/commit/84e90d5db4c7a95bffeafdb2929b6c6ffbfa8312
+ 4.0 en [add_ltiadv,mod_lti]
+ 4.0 en [add_ltilegacy,mod_lti]