Author: Tim Hunt
MDL-74610 quiz: multiple grades - UI mockup and nav
http://git.moodle.org/gw?p=moodle.git;a=commit;h=dfb3de1eb3de83e3aa16f9366670f248cafe34f4
http://github.com/moodle/moodle/commit/dfb3de1eb3de83e3aa16f9366670f248cafe34f4
+ 4.4 en [complexgrading,mod_quiz]
+ 4.4 en [quizsetupnavigation,mod_quiz]