Git commits in Moodle 3.3.0 by Jakob

commit 6a36b8526ee42c19bfeffe5227325520cb69f2c2
Author: Jakob <jackermann@onlineschool.ca>
Date:   Fri, 13 Jan 2017 09:16:25 +0800
Tag:    v3.3.0-beta

MDL-37765 course: Add capability to ignore availability restrictions.