Author: Benjamin Abraham
MDL-86119 mod_folder: Remove YUI TreeView
Remove YUI TreeView and replace it with a layout of "ul" and "li" tags
Using core/tree javascript module to implement ARIA navigation and collapse toggle
Accessibility text for root folder
Empty alt attributes
Remove unused foldertree class from edit.php form
http://git.moodle.org/gw?p=moodle.git;a=commit;h=d182af6585c7e50c3fd056d4d973ebfc227c2b31
http://github.com/moodle/moodle/commit/d182af6585c7e50c3fd056d4d973ebfc227c2b31
+ 5.2 en [topleveldirectory,mod_folder]