Git commits in Moodle 3.2.3 by Ankit Agarwal

commit ac3022fb0eab7475d948ca01d472780134d1d8f9
Author: Ankit Agarwal <ankit@moodle.com>
Date:   Wed, 26 Apr 2017 11:46:25 +0800
Tag:    v3.2.3

MDL-58701 phpunit: Add tests for external_settings

commit eed84bfd4bdb5e547d4dc15b6853794e2f906eea
Author: Ankit Agarwal <ankit@moodle.com>
Date:   Tue, 25 Apr 2017 15:16:46 +0800
Tag:    v3.2.3

MDL-58701 libraries: Use pluginfile.php as rewrite url for web req.

commit c51e98722b23b0c4665657edec48d5a6c3348b96
Author: Ankit Agarwal <ankit@moodle.com>
Date:   Mon, 24 Apr 2017 14:17:29 +0800
Tag:    v3.2.3

MDL-58691 exporter: Filters should always apply for web pages

commit aae0a865bbc97cb88fbe266e54c5fa17ebe45243
Author: Ankit Agarwal <ankit@moodle.com>
Date:   Mon, 03 Apr 2017 11:53:58 +0800
Tag:    v3.2.3

MDL-58465 unittests: Fix invalid use of exception

commit 9ec4ffe9beab801cf3c2f020be77eae88c569866
Author: Ankit Agarwal <ankit@moodle.com>
Date:   Thu, 23 Mar 2017 18:27:16 +0800
Tag:    v3.2.3

MDL-57510 questionbank: Add horizontal navigation