Author: Marina Glancy
MDL-37009 Display courses and categories tree on /course/index.php using new renderer
Also /course/category.php
http://git.moodle.org/gw?p=moodle.git;a=commit;h=8e57a6df6d131f290558149b4b0fbc4a84e17af9
http://github.com/moodle/moodle/commit/8e57a6df6d131f290558149b4b0fbc4a84e17af9
+ 2.5 en [viewallsubcategores,core]