Renamed nginx site.
Replaced nginx site with complete nginx config.

I plan to deploy the site in a Docker image running Arch Linux as a
base. Arch doesn't use the sites-available/sites-enabled system like
Debian and family.
Added mirror list for Arch Docker image.
Added docker file.
Fixed: nginx was searching in wrong directory.
Modified Dockerfile to use Ubuntu 12.04 image.

The Arch image was causing a host of problems. Not sure why and it's not
really worth my time right now.
De-activated IPv6.

It's caused some problems and I don't have IPv6 addresses anyway right
now. This needs to be re-added later.