Tweak gitignore and add rackspace role
Add provisioning support for vagrant

- Add vagrant playbook/role to spin up instances in vagrant
- Moved rackspace vars into rackspace hash
- General cleanupworkingfuls
First pass at test rings, disks, kong/exerstack
Drop swift-private-management environment with endpoints. Kong/Exerstack now pass
Fix typoe
Added mail relay tests
Add dsh tests
Add dispersion tests
Add ntp tests
Add logging tests
Add expirer tests
Added prefix and region to top level command line options
Updating README with command line parm options and testing stuff.
Merge pull request #1 from claco/master

Updating README with command line parm options and testing stuff.
Update README.md
Use disk_config on storage nodes.

This will make some real disk available for swift clusters and doesn't hurt anything.