Fix handling of directories under lib in the DeploymentAgent.
Validate addition/removal of containers to the ensemble against the existing ensemble.
Don't display into System.err when saving configuration.
Make ProfileData internal maps immutable.
Improve & Un-ignore itests.
[FABRIC-749] NoSuchMethodError: org.apache.felix.utils.properties.Properties.setProperty
[FABRIC-749] Resolve split packages in fabric-core, fabric-git, fabric-zookeeper
FABRIC-620: Ensure we pick the highest version available in the overrides