1. Improve upgrade note
2. Don't abuse $PAGE to get the current course/cm
3. Use validate_context, never $PAGE->set_context()
4. Reset current coursemodule in validate_context().
5. Respect moodlepageclass when calling an external function.
MDL-45847 resort: Add more course sorting options
Add descending sort options and course timecreated sort options.
Includes behat and unit test changes.
* Drag and drop icon switched to a 12x12px icon.
* Drag and drop icon now uses cursor:pointer
* Improved alignment of the caret for course listing actions.
* Added confirmation when bulk moving courses.
* Increased min-width of category course count to allow for 3 digits.
* Fixed sub-category => subcategory
* Renamed console JS vars to managementconsole
* Added typeof operator
* Renamed oldcatcourses and newcatcourses as suggested
* Added a span around course count and interacted with that.
* Fixed icon sizing
* Fixed management behat tests
* Fixed wrapping of strings in menus
* Fixed typo breaking drag and drop of courses.
* Fixed the ' ' title for the create new button plus two other icons I found as well.
* Adding padding to items displayed in the action menu drop down. base + bootstrapbase.
* Padding adjusted to the same as on the course page. base + bootstrapbase.
* Removed hover icon from categories. base only.
* Fixed categroy typo
* Removed min-width that was being applied to coursename making its clickable area larger than normal.
* The category tree is now presented using aria attributes as per http://www.w3.org/WAI/GL/wiki/Using_ARIA_trees
* Bulk action selectors now use aria-labelledby
* Category course count now given access hidden label.
* Pagination links now have better titles.
* The course action icons now present with role=button
* Tidied up course detail permissions so that user is not shown information they couldn't access elsewhere.
* category link dimming now accounts for course creation as an action as well.
* category single select when in courses view mode is now limited to courses user can action in.
* There is now a check at the start of the management page to redirect to course/index.php if the user isn't able to manage in any category.
* Tweaked navigation again, to give the limited users a navbar structure similar to the system cap'd user.
* Cancelling a category delete now takes you back to the category you were viewing.
* Fixed undefined notice
* Improved placement of course request and approval links.
* Several styling tweaks/improvements to the base theme.
* Several styling tweaks/improvements to the bootstrapbase theme.
