Author: Tim Hunt
MDL-20636 Quiz editing now works, as does the random question type.
However, all this needs more testing.
Also, a bit of a purge of training whitespace and global .
http://git.moodle.org/gw?p=moodle.git;a=commit;h=f9b0500f7fc461365303338181c33920a7b2c2c1
http://github.com/moodle/moodle/commit/f9b0500f7fc461365303338181c33920a7b2c2c1