Author: Colin Chambers
MDL-37422 Quiz: Group fields related to 'Settings for multiple tries.'
http://git.moodle.org/gw?p=moodle.git;a=commit;h=6dbc346095d13878026eeb5f8371dfcd14293461
http://github.com/moodle/moodle/commit/6dbc346095d13878026eeb5f8371dfcd14293461
+ 2.5 en [hintnoptions,core_question]