Git commits in Moodle 3.5.x by Brendan Cox

commit 1be5d6f4fec61adaedbac4b8904f716bae2b5d63
Author: Brendan Cox <brendan.cox@totaralearning.com>
Date:   Tue, 08 May 2018 16:50:49 +0800
Tag:    v3.5.0-rc1

MDL-62210 mod_assign: improved validation in portfolio caller class

commit d8609cb545333dd76c20ad70d7383a1f1a59a437
Author: Brendan Cox <brendan.cox@totaralearning.com>
Date:   Fri, 27 Apr 2018 07:46:13 +0800
Tag:    v3.5.0-rc1

MDL-62232 mod_forum: Additional tests for portfolio file export