cellar-cloud: The IP is not enough, sometimes the IP is hidden but a valid dns name is available

Especially when working with a Amazon EC3 instance you don't always have a single IP available, or even worse the EC3 server doesn't know of the possible elastic ip. But all of those Servers do have a valid DNS name.
I'd like to enhance the stored object not to be only a Date but a container object containing the date, and possible enhancements like the dns name.

This does also differ to the displayed name/ip when using cluster:node-list