Backward-incompatible change: change order of IPs in cluster

- Broker now gets dynamic IP instead of static
- Stanchion is first, followed by riak node, so nodes can have
  contiguous IPs if we add more
- Existing deployments cannot be upgraded due to firewall rules not
  allowing change of IPs
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Update riak-cs-service.yml
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Acceptance test fail unless service offering name is riak-cs. Changing this back until acceptance test can be configured with service name.
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Allow flexibility in naming for riak-cs service/plan for tests
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