Author: Huong Nguyen
MDL-72867 Navigations: User menu improvements
http://git.moodle.org/gw?p=moodle.git;a=commit;h=8c336899a9d4d3a92f8e214100c2a7076e801f9d
http://github.com/moodle/moodle/commit/8c336899a9d4d3a92f8e214100c2a7076e801f9d
+ 4.0 en [configcustomusermenuitems,core_admin]