Author: Jakob
MDL-37765 course: Add capability to ignore availability restrictions.
Allow a role to view activities without addressing the restriction rules.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=6a36b8526ee42c19bfeffe5227325520cb69f2c2
http://github.com/moodle/moodle/commit/6a36b8526ee42c19bfeffe5227325520cb69f2c2
+ 3.3 en [course:ignoreavailabilityrestrictions,core_role]