Tidy up README.md

Edit README.md to provide a link to deploying kubernetes with Heat in VMs

Provide link to heat-kubernetes that Lars put together
Also explain directory layout
Base images from Fedora 20 + RDO Icehouse

Previously images were based from RHEL OSP + RDO Icehouse.  This presents
a problem in that internal urls are used to access the rhel7 repositories.
For new contributors, we need something that can be accessed without special
rhel7 permissions.

mariadb and rabbitmq can from fedora
cinder, glance, keystone can from fedora-rdo-base

This patch also uses the RDO repositories from upstream.  This patch also
udpates the base fedora image with latest bits.
Clean up keystone docker file
The cinder image build started cinder during building

The cinder image build started cinder during building.  Instead it should
only be started during runtime.  Further it installed a bunch of infrastructure
dependencies (mysql, rabbitmq) that are likely not needed in the cinder image.
Add scripts to build all the images automatically or per image

Typing in sudo ./docker getting old - so lets automate the build ;)
Add heat api and engine docker images

Add autobuilding for heat api and heat engine images.  Unfortunately
initial config and runtime config are not handled properly yet.
Add swift boilerplate

Add swift boilerplate for Docker building and Kubernetes support