Remove python version - migrating to bash

Python is not part of the initial live media or base package. I would rather not impose this need of this package so early
Update config

Use bash syntax; this file will be sourced into install script
(Initial) rewrite/rework of install script

Based on dangets/arch.cluster/node-install.sh
Rename configuration ~ Update install script
Add install / configuration files

These are _hard_ required at install. That is, they cannot be provisioned by
salt until after the initial install is complete
Update README

Add (draft) install instructions