Ensure that RuntimePropertiesService is able to set system properties (required for rmi).
Fix NPE issue.
AbstractCommandComponent now uses the NullCompleter if no completer has been bound.
ENTMQ-598 - make sure zookeeper login module uses correct path
Fix output of ensemble-add/ensemble-remove commands.
update the docker API so we can work properly with image create API calls
initial spike of #1119 to support running micro service style java containers; which have no actual application server at all other than a flat class loader (based on the jars defined in the profile itself). Users could use custom underlying docker images (and custom locations of the java library path) to provisoin other mini-container models (e.g. vertx)