Author: Shamim Rezaie
MDL-31355 mod_forum: Create, update and delete due date event
http://git.moodle.org/gw?p=moodle.git;a=commit;h=bbbf1820896ed8c2dbda065167bc2db4cbcf4a30
http://github.com/moodle/moodle/commit/bbbf1820896ed8c2dbda065167bc2db4cbcf4a30
+ 3.7 en [calendardue,mod_forum]