Author: Safat Shahin
MDL-73376 qbank_comment: Version selection in modal
This commit implements version selection in the comment
modal to allow users to change the version of question
using that dropdown.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=497a644b482d7d03760ab16a9d495c1030bab93d
http://github.com/moodle/moodle/commit/497a644b482d7d03760ab16a9d495c1030bab93d
+ 4.1 en [version_selection,core_question]
+ 4.1 en [question_version,core_question]