Author: M Kassaei
MDL-40990 quiz: option to require prev Q finished before next shown
http://git.moodle.org/gw?p=moodle.git;a=commit;h=f7785e42b32485de2682a0da2ae7f5ed15c974f8
http://github.com/moodle/moodle/commit/f7785e42b32485de2682a0da2ae7f5ed15c974f8
+ 2.9 en [addquestiondependency,mod_quiz]
+ 2.9 en [questiondependency,mod_quiz]
+ 2.9 en [configquestiondependency,mod_quiz]
+ 2.9 en [questiondependency_help,mod_quiz]
+ 2.9 en [questiondependsonprevious,mod_quiz]
+ 2.9 en [removequestiondependency,mod_quiz]