Tool to build (nfs export) openstack dev environments

# Todo

* move back to using sudo

* Add python-novaclient cli support

* move to mysql

* Add volume support

* extract image upload to a seperate script that supports generating images via debootstrap (ubuntu-vm-builder?)

* allow changing of git locations (specify different tag/branch or repos)

* change method of invoking stack.sh to ./stack.sh all _or_ ./stack.sh nova-compute,nova-network,nova-api,nova-volume

* Add quantum support

* allow rabbit connection to be specified via environment variables with sensible defaults

# Done

* sqlconn can be set via env

# Future

* idea: move from screen to tmux?

* idea: create a live-cd / vmware preview image using this?

* idea: use lxc to make the proto-image have everything? so launching a new server is just turn on / updating / run?