Author: Simon Adams
MDL-71378 mod_qbank: Add question bank backup/restore and refactor tests
http://git.moodle.org/gw?p=moodle.git;a=commit;h=966b264cf37aa8edd8857f74af712502c38a8fd3
http://github.com/moodle/moodle/commit/966b264cf37aa8edd8857f74af712502c38a8fd3
+ 5.0 en [qcategory2coursefallback,core_backup]
+ 5.0 en [question2coursefallback,core_backup]
+ 5.0 en [courserestore,core_question]