Author: Tim Hunt
MDL-32300 quiz manual grading report: also do some other cleanup.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=7e3ac96cbe618c8234a5118445387cf662b409d5
http://github.com/moodle/moodle/commit/7e3ac96cbe618c8234a5118445387cf662b409d5
+ 2.3 en [nothingfound,quiz_grading]