[SAC] GitLab deploy update

[Sandro Santilli]

On Sun, Aug 14, 2016 at 09:58:40AM +0200, Sandro Santilli wrote:

> Still todo:
> 
>  - Obtain a trusted SSL certificate (easy with letsencrypt/certbot)
>  - Configure GitLab to be accessible via a /gitlab subdir
>  - Setup Apache reverse proxy on git.osgeo.org so the service
>    appears as https://git.osgeo.org/gitlab
>  - Disable registration, point "sign up" links to the OSGeo Userid
>    registration form
>  - Add OSGeo Branding

I've made sure tickets for the above exist here:
https://vps306914.ovh.net/gitlab/osgeo-gitlab/issues

--strk;