OpenVZ Template work

This is a first attempt to add OpenVZ image creating

Also moved the README to markdown, so that it is correctly formatted

I prefer the script method, as that works better, and the image is quicker to build

let me know your thoughts
Never symlink ``/etc/localtime``; it should be a copy of the ``zoneinfo`` file.  (If you symlink it, and then someone runs, e.g., ``system-config-date``, they will overwrite ``/etc/localtime`` -- and thus the ``zoneinfo`` file as well.  That is, instead of changing from GMT to EST5EDT, they will change GMT *into* EST5EDT.)