Update Dockerfile

Added start referenced command.
Just remove pyghmi for now...

My previous patch wasn't actually working, so
I'm just going to remove pyghmi for now. This line
will need to be removed to support Ironic.
Fix tick/backtick in openstack-git-checkout
Move image caching to base image
Fix urls following move of images to base
Merge pull request #2 from koolhead17/patch-1

Fix path to start script for CMD
Disable ZeroMQ...

This wasn't supposed to be enabled. It slipped in ;-)
Merge branch 'openstack-ci' of github.com:ewindisch/dockenstack into openstack-ci
Configure eth0:1 alias for devstack's FIXED_IP range
Source devstack functions/config for openstack-git-checkout
Create opt/stack
Squash dockenstack-base back into dockenstack

Also squashes several RUN commands together into
more logical units.
No longer blacklist pyghmi
Move ffi-dev install
Fix regression in pip requirements install
Writing nova-git file should use cat, not echo
Set RECLONE to freshen git repos
Disable all cinder services

Just disabling "cinder" isn't enough, we must
explicitly list each service.
Allow failure of cloning individual repos
Fix missing backslash on || for clone failure handling