Four new strings added to show the work done against quiz_categories when a course is deleted. Part of bug 2459 (http://moodle.org/bugs/bug.php?op=show&bugid=2459)
Four new strings added to show the work done
against quiz_categories when a course is deleted.
Part of bug 2459
(http://moodle.org/bugs/bug.php?op=show&bugid=2459)

Merged from MOODLE_15_STABLE

Please check strings!! My English can be, sometimes, wrong!!! ;-)

dilawar/moodle