initial ansible based version
more development

- added gitignore
- run stack as a shell script (not ansible)  in order to watch the output
- refactored vars into include file
- added ansible task to create ssh key for demo user
- added ansible task to upload key pair for demo user
Add key pairs, DNS, sec grps

- add key pair logic
- add dns, sec groups changes
Works, kind of...

devstack comes up, but there is no network for the guest vm to participate in.
added doc outlining the inside of the devstack vm
Update for new network, new guest images

- add new host IP address
- add new ubuntu guest images
- document vagrantfile better