Second pass, using rackspace.
Provide config file explictly on command-line.
Be explicit about rackspace distribution support.
Use Attribute for _-prefixed attributes.

The default coercion to Attribute sets init_aliaser to None.
wait_until_running returns a *list* of addresses.
Fail tests if nodes not reachable, instead of skipping.
Add todo file.
Bump timeout in acceptance tests.

Since we are now talking to cloud instances, there will be some delay.
Thread branch/version through to install step.
typo
typo
Add some docs.
Merge forward.
Proof of concept sphinx extension.
Get rid of prompt, for copy-paste.
Get rid of timeout in acceptance test.

Instead rely on the operating system's timeout.
Adjust zpool path to match master.
Review comments.
First step in factoring out fabric.
Ignore GSSAPIAuthentication option, if it is unsupported by ssh.