Sync with CIT xapi cleanup script.

Also cleans up networks, has some more error handling, prettier output.
Copy the devcloud4 advanced config for convenience.

source: https://github.com/imduffy15/devcloud4/blob/master/advanced/advanced.json
Copy vagrantfile from devcloud4
Attempt merge between ekholabs hardcoded settings and devcloud4
Add devcloud4 common scripts
Rename secondary IPs too
Merge pull request #1 from lsimons/shiny

Work in progress to get these tests running against devcloud4