Author: Mark Johnson
MDL-83861 qbank: Add question idnumber filter
http://git.moodle.org/gw?p=moodle.git;a=commit;h=9600744e444264a33e133364cb70266e6e3eab0e
http://github.com/moodle/moodle/commit/9600744e444264a33e133364cb70266e6e3eab0e
+ 5.0 en [questionidnumbercondition,qbank_viewquestionname]