fixes FABRIC-960 so we can handle more gracefully the fabric-agent version changing
#675 use correct listen host address so we can properly connect to port 8181 from the host OS when using docker. Huge thanks @iocanel!
fixes #675 we enable sshd by default now so its easier to diagnose fabric8 issues; then let folks configure the docker profile to specify the default image to be used (e.g. to easily switch to a local build)
#675 added documentation, hints and tips on how to use docker and fabric8