Git commits in Moodle 3.1.0 by Oleg Sychev

commit 87b2ed6c1ff84019bedf31e150dcc1574a99d733
Author: Oleg Sychev <oasychev@gmail.com>
Date:   Wed, 21 Oct 2015 03:31:10 +0800
Tag:    v3.1.0-beta

MDL-51746 accesslib: Describe instanceid in context_something::instance