Git commits in Moodle 3.4.8 by Tim Hunt

commit ad4dfb1e8cb7b0b2cac3d8598bb4df7cee266a85
Author: Tim Hunt <T.J.Hunt@open.ac.uk>
Date:   Fri, 07 Dec 2018 03:27:29 +0800
Tag:    v3.4.8

MDL-64799 qtype_random: orphaned random questions should be deleted