Author: Cameron Ball
MDL-82587 mod_quiz: Add slot version updated event
http://git.moodle.org/gw?p=moodle.git;a=commit;h=34785bcec86a854ca6f3cb7f99a5e8e2ca5c066f
http://github.com/moodle/moodle/commit/34785bcec86a854ca6f3cb7f99a5e8e2ca5c066f
+ 4.5 en [eventslotversionupdated,mod_quiz]