Added onFinalizing and onDone methods in the NodeDeploymentExecutor.
Now the state is retrieved from the global runtime parameters.
Now to "complete" the state we do a POST on the RuntimeParameter named "complete" instead of "state".
Minor improvements in Executors.
The MachineExecutor will not timeout while waiting for a state transition if the state is "Ready" and the deployment is configured to be kept running.
Bugfix in openstack-run-instances