Updated ipmitool.sh
Renamed auto_helion.sh to OLD_auto_helion.sh
(* This was an early version used with Jun 2014 Community Edition / Baremetal *)

Added 2 new scripts (only just split from one script so still some duplication)
- INSTALLER.sh - script to facilitate Helion Baremetal installation
                 (* tested only with Helion OpenStack GA *)

- TOOLS.sh     - script to facilitate access to Under/Overcloud nodes
Updated README for new INSTALLER/TOOLS scripts.
This is only a first cut at the documentation.