Git commits in Moodle 3.2.5 by Davo Smith

commit ce5bf80ab6e24f66776c6b69c1b9017ce2d1aa7a
Author: Davo Smith <davo.smith@synergy-learning.com>
Date:   Mon, 21 Aug 2017 17:20:06 +0800
Tag:    v3.2.5

MDL-59195 mod_assign: add behat tests for comments error

commit 31fb71994e41b20662619bcb545f47de648dc483
Author: Davo Smith <davo.smith@synergy-learning.com>
Date:   Wed, 19 Jul 2017 23:31:52 +0800
Tag:    v3.2.5

MDL-59195 assignsubmission_comments: fix permission checks