Removes $PAGE->set_secondary_navigation(false) calls which certain pages
were using to prevent displaying secondary navigation menu in the system
context. This logic is now generally handled within the secondary
navigation class.
- Introduce core_course_category::get_nearest_editable_subcategory()
- This function will return the first creatable/manageable category
for current user
- With this new function, we can fix the issue that the users with
course management or creation permision at category level cannot see
the manage menu on My courses page
Amaia Anabitarte