Git commits in Moodle 3.5.2 by Sara Arjona

commit 502b17bebd51bf55643ce8d674a6dd8f1ec94bac
Author: Sara Arjona <sara@moodle.com>
Date:   Fri, 20 Jul 2018 21:25:09 +0800
Tag:    v3.5.2

MDL-41847 core_user: Add preferred lang field to the user creation form

commit 2857ca0c9f08ebc4efcefab860f8ae94d4f870b7
Author: Sara Arjona <sara@moodle.com>
Date:   Tue, 17 Jul 2018 19:17:57 +0800
Tag:    v3.5.2

MDL-41847 core_user: Add lang to login URL email for new user accounts

commit 3fe9524aafe077e5d90ba53bea228929a4f1cb9f
Author: sarjona <sara@moodle.com>
Date:   Tue, 10 Jul 2018 17:06:23 +0800
Tag:    v3.5.2

MDL-60924 core_user: Hold participant filters when clicking some link

commit 783f2a8b8ef1ba78857e0561c29c3e7bc7052bab
Author: Sara Arjona <sara@moodle.com>
Date:   Wed, 04 Jul 2018 13:57:25 +0800
Tag:    v3.5.2

MDL-62852 policy: Display policy audience in the viewall.php page