Author: ferran
MDL-86210 core_courseformat: add permalink to activities
http://git.moodle.org/gw?p=moodle.git;a=commit;h=707aa5416c4eae0dd56e139ea30bd3acb3d56b78
http://github.com/moodle/moodle/commit/707aa5416c4eae0dd56e139ea30bd3acb3d56b78
+ 5.1 en [activitylink,core_course]