Author: Sam Hemelryk
MDL-45884 navigation: tidied up code and added behat tests
http://git.moodle.org/gw?p=moodle.git;a=commit;h=aab6438ca1681f4e7cfe757d4bcd026a3a9e6e12
http://github.com/moodle/moodle/commit/aab6438ca1681f4e7cfe757d4bcd026a3a9e6e12
+ 2.8 en [navcollapsemycourses,core_admin]
+ 2.8 en [navcollapsemycourses_desc,core_admin]
- 2.8 en [confignavcollapsemycourses,core_admin]