Author: David Monllaó
MDL-64783 analytics: Updated insight subject for course_enrolments
http://git.moodle.org/gw?p=moodle.git;a=commit;h=02dfbf44a74cd86ce3fe159b0b646d77833da09f
http://github.com/moodle/moodle/commit/02dfbf44a74cd86ce3fe159b0b646d77833da09f
+ 3.7 en [studentsatriskincourse,core]