Author: Cameron Ball
MDL-82639 mod_quiz: Improve events for random questions
http://git.moodle.org/gw?p=moodle.git;a=commit;h=1c293fec247b8928a7569b5275e904ecb8e3d28f
http://github.com/moodle/moodle/commit/1c293fec247b8928a7569b5275e904ecb8e3d28f
+ 5.2 en [eventslotfilterconditionupdated,mod_quiz]