have_executed_serially now correctly handles multiple commands

Signed-off-by: Dan Wendorf <dwendorf@pivotallabs.com>
Extract DeployEnvironment from CfDeploy

Signed-off-by: Dan Wendorf <dwendorf@pivotallabs.com>
Rename *manifest* files to *release_manifest*

Signed-off-by: Dan Wendorf <dwendorf@pivotallabs.com>