Added mattermost_nginx['redirect_http_to_https']
It is not obvious that this has to be set even if GitLab has redirection enabled already. If this is not set, HTTP requests to Mattermost will be redirected to HTTPS on GitLab instead.
It is not obvious that this has to be set even if GitLab has redirection enabled already. If this is not set, HTTP requests to Mattermost will be redirected to HTTPS on GitLab instead.