Author: Tim Hunt
MDL-31080 quiz editing, must be able to see and delete missing questions
http://git.moodle.org/gw?p=moodle.git;a=commit;h=31c552144217aebeec05f01e003c8a9491d1703b
http://github.com/moodle/moodle/commit/31c552144217aebeec05f01e003c8a9491d1703b