Author: Stephen Bourget
MDL-48944 mod_survey: Add activity completion on submission
http://git.moodle.org/gw?p=moodle.git;a=commit;h=1a99786ff8ede8cddc1ef061a1ac5801a93e9ab6
http://github.com/moodle/moodle/commit/1a99786ff8ede8cddc1ef061a1ac5801a93e9ab6
+ 3.2 en [completionsubmit,mod_survey]