Git commits in Moodle 3.2.1 by John Okely

commit 829cafc050ae34a689f9b14bd53f1673bf39d249
Author: John Okely <john@moodle.com>
Date:   Fri, 16 Dec 2016 10:22:47 +0800
Tag:    v3.2.1

MDL-57331 messaging: Fix sent messages appearing twice.


commit cff14cf0d1859043c1a059e900db954c27785f96
Author: John Okely <john@moodle.com>
Date:   Wed, 07 Dec 2016 11:43:54 +0800
Tag:    v3.2.1

MDL-57278 signup: Unit tests covering confirmation link generation


commit c1c3f50965f4e43c1ad40974d751548616997e06
Author: John Okely <john@moodle.com>
Date:   Wed, 07 Dec 2016 11:16:25 +0800
Tag:    v3.2.1

MDL-57278 signup: Fix double encoding of confirmation links


commit 25474b5e847087c19e4913c050e2f102a0494875
Author: John Okely <john@moodle.com>
Date:   Fri, 02 Dec 2016 14:57:30 +0800
Tag:    v3.2.1

MDL-57268 auth_db: Unit tests for deletion from a large user set


commit 931d12b5892387db797d310a7272b57fdc3b3bbb
Author: John Okely <john@moodle.com>
Date:   Wed, 23 Nov 2016 16:07:35 +0800
Tag:    v3.2.1

MDL-54921 signup: Only clear wanturl when necessary