Author: Thanh Le
MDL-35792 question preview: way to update options without restarting.
It is useful, and possible, to update the display options without
restarting the question. You now only have to restart if you are
changing the maximum mark or the behaviour.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=5b8d9521ee6982e49731a38d5034f960b0e66742
http://github.com/moodle/moodle/commit/5b8d9521ee6982e49731a38d5034f960b0e66742
+ 2.3 en [attemptoptions,core_question]
+ 2.3 en [displayoptions,core_question]
+ 2.3 en [updatedisplayoptions,core_question]