Initial commit of nova driver
Initiate the salt client late, and memoized it's instantiation.
Merge pull request #3 from s0undt3ch/hotfix/memoize-saltclient

Initiate the salt client late, and memoized it's instantiation.
Let's focus on just using the keystone configs in salt
Clarify documentation for nova module
Merge pull request #868 from techhat/nova

Initial commit of nova driver