MDL-38055 course: fixed double encoding of title properties

Conflicts:
	lib/navigationlib.php
MDL-38452 repositories: User logged in as have access to non-private repositories
MDL-37676 Use course grade category if mapping fails for manual grade items
MDL-38702 theme_mymobile: Replaced missing theme setting to disable CSS Optimiser.

The missing setting was a regression casued by MDL-33357.
MDL-38112 - update to the ISO list of countries

According to ISO 3166-1
MDL-38700 course: add tests for moveto_module()

* Test visibility when moving around hidden sections
* Test for visiblity changes when moving around in the same sections.
MDL-38700 course: only change visibility if a module moves to a different section
MDL-38713 course: correctly set visibleold on mod creation

Remove uncessary set of visibleold in the form
MDL-35603 - Backup - Course import/restore max results

* Unified UI for import and restore course search
MDL-38809 quiz manual grading: delete expensive unnecssary code.
MDL-38361: Fixed typos in mod/assign/locallib.php
MDL-38657 theme_base: Fixes misalignment issue in User Report page.
Merge branch 'MDL-38702_M24' of git://github.com/lazydaisy/moodle into MOODLE_24_STABLE
Merge branch 'MDL-38700-24' of git://github.com/danpoltawski/moodle into MOODLE_24_STABLE
Merge branch 'MDL-38713-24' of git://github.com/danpoltawski/moodle into MOODLE_24_STABLE
Merge branch 'MDL-35603_24' of git://github.com/rlorenzo/moodle into MOODLE_24_STABLE
MDL-35603 backup: fix coding style issues

Conflicts:
	backup/util/ui/restore_ui_components.php
MDL-35883 Accessibility: Added title for user link in header and footer for accessibility
MDL-35883 Accessibility: Added title for login as user link in header and footer for accessibility
MDL-38840 Statslib - Fix failing unit tests on ci server (DST change)