Use HTTPS URLs in templates

[Paul Menzel]

Dear Zaphop,


Am 14.12.2017 um 07:45 schrieb Zaphod:
> The SSL cert set up for the site is only valid for tibeti.xfce.org so
> they'd have to change that as well.
> 
> It's an LE cert so it should be very easy to do this on, though.

Sorry for being ambiguous. I meant the URL for the Xfce Web site 
https://xfce.org. The certificate is correctly set up for that.

```
$ curl -I http://www.xfce.org
HTTP/1.1 302 Found
Date: Thu, 14 Dec 2017 07:33:48 GMT
Server: Apache/2.4.10 (Debian)
X-Frame-Options: DENY
X-Content-Type-Options: nosniff
Location: https://xfce.org/
Cache-Control: max-age=120
Expires: Thu, 14 Dec 2017 07:35:48 GMT
Content-Type: text/html; charset=iso-8859-1

$ curl -I https://www.xfce.org
HTTP/1.1 302 Found
Date: Thu, 14 Dec 2017 07:33:40 GMT
Server: Apache/2.4.10 (Debian)
X-Frame-Options: DENY
X-Content-Type-Options: nosniff
Location: https://xfce.org/
Cache-Control: max-age=120
Expires: Thu, 14 Dec 2017 07:35:40 GMT
Content-Type: text/html; charset=iso-8859-1

```


Kind regards,

Paul