Author: Ruslan Kabalin
MDL-51830 course: Add course section deletion event.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=fa29c0c3d41cc621a2072c3f8ad11819d5138c01
http://github.com/moodle/moodle/commit/fa29c0c3d41cc621a2072c3f8ad11819d5138c01
+ 3.1 en [eventcoursesectiondeleted,core]