Author: Marina Glancy
MDL-57769 course: prepare to remove numsections option
http://git.moodle.org/gw?p=moodle.git;a=commit;h=89b909f6de0a45d2043b0dee0f482d93f196b5ed
http://github.com/moodle/moodle/commit/89b909f6de0a45d2043b0dee0f482d93f196b5ed
+ 3.3 en [addsection,format_weeks]
+ 3.3 en [addsection,core]
+ 3.3 en [eventcoursesectioncreated,core]