Author: Tim Hunt
MDL-33393 quiz overdue handling: improve strings and add help
http://git.moodle.org/gw?p=moodle.git;a=commit;h=d9552ab44f235e7bdbdf6dfd20f98f1a014d7e3b
http://github.com/moodle/moodle/commit/d9552ab44f235e7bdbdf6dfd20f98f1a014d7e3b
+ 2.3 en [overduehandling_help,mod_quiz]
+ 2.3 en [overduehandling_link,mod_quiz]
+ 2.3 en [overduehandlingautosubmit,mod_quiz]
+ 2.3 en [overduehandlinggraceperiod,mod_quiz]
+ 2.3 en [overduehandlingautoabandon,mod_quiz]
+ 2.3 en [quizopenclose_link,mod_quiz]
+ 2.3 en [timelimit_link,mod_quiz]