Author: Simey Lameze
MDL-70820 mod_survey: custom completion implementation
http://git.moodle.org/gw?p=moodle.git;a=commit;h=8a578bad209282e15256e0d80f6507465530ae7f
http://github.com/moodle/moodle/commit/8a578bad209282e15256e0d80f6507465530ae7f
+ 3.11 en [completiondetail:submit,mod_survey]