Author: Tim Hunt
MDL-58790 quiz editing: translate hard-coded new heading string
http://git.moodle.org/gw?p=moodle.git;a=commit;h=2835d3c50d49c453001e28f5c404d645b507533f
http://github.com/moodle/moodle/commit/2835d3c50d49c453001e28f5c404d645b507533f
+ 3.3 en [newsectionheading,mod_quiz]