Git commits in Moodle 3.6.x by Tomasz Muras

commit 7cdd97b25203beed58463929f3427610fee62db3
Author: Tomasz Muras <tomek.muras@enovation.ie>
Date:   Wed, 18 Jul 2018 22:54:31 +0800
Tag:    v3.6.0-beta

MDL-50325 core: Use plugins API to check module status.

commit c9f765452fe9553271b5db1d38bf7b7ab74b5864
Author: Tomasz Muras <tm@enovation.ie>
Date:   Tue, 17 Jul 2018 21:37:15 +0800
Tag:    v3.6.2

MDL-52966 core: static cache fix for file types.