Author: Simey Lameze
MDL-69561 mod: handle content download on course modules
http://git.moodle.org/gw?p=moodle.git;a=commit;h=89e59a60ef95ea113356a015223f54a5e8c9b61c
http://github.com/moodle/moodle/commit/89e59a60ef95ea113356a015223f54a5e8c9b61c
+ 4.0 en [downloadcontent,core_course]
+ 4.0 en [downloadcontent_help,core_course]