Author: Safat Shahin
MDL-72957 qbank_viewcreator: modified by column
This commit will implement modified by column for
the question bank instance.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=8940b3ee656d65645ae787b34a1ef942b4d69ecf
http://github.com/moodle/moodle/commit/8940b3ee656d65645ae787b34a1ef942b4d69ecf
+ 4.1 en [modifiedby,qbank_viewcreator]