Author: Peter Dias
MDL-70198 core_navigation: Implement secondary nav and curate nodes
Implement the new secondary nav and curate the nodes from flatnav and settingsnav
http://git.moodle.org/gw?p=moodle.git;a=commit;h=683e7b2aaf9d0bc540253aae83bb61f383ab55ed
http://github.com/moodle/moodle/commit/683e7b2aaf9d0bc540253aae83bb61f383ab55ed
+ 4.0 en [coursepage,core_admin]