spring-projects/spring-xd — pull request #845 by ilayaperumalg (2014-05-14 18:16:51+00:00)
Title: XD-1708 Handle module re-deployments

- Update `DefaultContainerMatcher` to use zkConnection to obtain the list
of containers that stream/job module for the same definition might have already been deployed.
- Filter out this list from the container candidates from the container matcher
- Update and refactor `ContainerListener`'s stream/job re-deployment methods