Git commits in Moodle 2.8.6 by Mike Grant

commit 87fd4f6b0d13f1ec7e12a6a33a514145401d0b73
Author: Mike Grant <michael.grant@bcu.ac.uk>
Date:   Tue, 10 Mar 2015 17:21:22 +0800
Tag:    v2.8.6

MDL-49276 config-dist: Removed legacy config options