Add new ipaddresses hash for issue #343

This is only a part of what is required for #343 to be completed.

- [x] Joyent, OpenStack, Rackspace
- [x] AWS (will add to AWS PR)
- [ ] Server-side support
- [x] UI changes to new addresses
- [x] Cluster templates
OK. I'll remove that. I am actually poking around on this, at the moment, because I am seeing strange failures with the fog provisioner (all types) and 0.9.7 (yeah, I know)...