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
``ami-creator``, the tool that is used to create images from the kickstart, requires grub during the install.  See the docker kickstart for an example -- it installs grub, and then removes it in ``%post``.