Author: Stevani Andolo
MDL-78428 tiny_media: Implemented embed thumbnail preview
http://git.moodle.org/gw?p=moodle.git;a=commit;h=d7c122f90aab69cbffceea6e494f0d19848e82a4
http://github.com/moodle/moodle/commit/d7c122f90aab69cbffceea6e494f0d19848e82a4
+ 5.0 en [thumbnail,tiny_media]