Git commits in Moodle 3.1.6 by Jan Dageförde

commit 50e53bb6ea45ebaa2ebf50101849a79103c7d8ee
Author: Jan Dageförde <jan.dagefoerde@ercis.uni-muenster.de>
Date:   Wed, 26 Apr 2017 16:44:52 +0800
Tag:    v3.1.6

MDL-58372 repository_webdav: Explicitly pass some filename

commit a6c36884b334cb255d5cdc1c9748ccafdadcab43
Author: Jan Dageförde <jan.dagefoerde@ercis.uni-muenster.de>
Date:   Thu, 13 Apr 2017 02:36:49 +0800
Tag:    v3.1.6

MDL-58582 theme: Improve PHPDoc comment on SVG image resolution

commit 31d826033195f03ec3e5605cd8dd0b3f865c96e4
Author: Jan Dageförde <jan.dagefoerde@ercis.uni-muenster.de>
Date:   Wed, 05 Apr 2017 03:02:51 +0800
Tag:    v3.1.6

MDL-58489 core: Fix unreachable HTTP error handling

commit e8e2c512b808a8b848ddf9a905268538648c06cb
Author: Jan Dageförde <jan.dagefoerde@ercis.uni-muenster.de>
Date:   Tue, 04 Apr 2017 21:44:46 +0800
Tag:    v3.1.6

MDL-58485 admin: Show all SVG plugin icons