Author: Syxton
MDL-45884 navigation: setting that allows sites to collapse My Courses by default
http://git.moodle.org/gw?p=moodle.git;a=commit;h=4d378e9f70750ae8958b90cc6159b492b0b86644
http://github.com/moodle/moodle/commit/4d378e9f70750ae8958b90cc6159b492b0b86644
+ 2.8 en [confignavcollapsemycourses,core_admin]
+ 2.8 en [navcollapsemycourses,core_admin]