Author: Stephen Bourget
MDL-45740 choice: add new events
http://git.moodle.org/gw?p=moodle.git;a=commit;h=e62f6a01e47bc7edb858937f6cedc0a656775247
http://github.com/moodle/moodle/commit/e62f6a01e47bc7edb858937f6cedc0a656775247
+ 3.1 en [eventanswerdeleted,mod_choice]
+ 3.1 en [eventreportdownloaded,mod_choice]