Author: Tim Hunt
quiz overview report MDL-17569 you should be see essay questions that need grading in the report.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=d39ba35c34d4272d5092b5f80bacd2be6e7fc50f
http://github.com/moodle/moodle/commit/d39ba35c34d4272d5092b5f80bacd2be6e7fc50f
+ 2.0 en [requiresgrading,quiz_overview]