[Delivers #47720523] Add comments to the CloudBlockStorageProviders and update a few of the integration tests
Merge pull request #59 from jasonmitschke/AddCloudBlockStorageSupport_CodeCommentsAndTestChanges

[Delivers #47720523] Add comments to the CloudBlockStorageProviders and update a few of the integration tests
Merge pull request #61 from rackspace/AddCloudBlockStorageSupport

Add cloud block storage support