Get rid of docker-cloud container id suffix

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In Docker-Cloud, containers are started with name <service-name>-<container#>.<stack-name>.<random-id>. We should get rid of the random-id (and maybe container#?) to provide backup continuity between containers redeployments.

Does multiples containers of same service always share same data? If yes, we could get rid of container#, else we should keep it. Do we have to give choice in configuration?

I personally do not have this problem right now.