Merge branch 'master' into develop

3.21.0 release

3.20.0 release

3.19.0 release

.

Merge branch 'develop'

Release 3.16.0

Validate the location has https. (govCMS#158)

* Validate the location has https.

* Update .docker/images/nginx/tests/src/AcsfRedirectsTest.php

Co-authored-by: Sean Hamlin <sean.hamlin@amazee.com>

* Update the redirect test to assertEquals.

Co-authored-by: Sean Hamlin <sean.hamlin@amazee.com>

 3.15.1

 3.15.0