Refactor run configuration

[duncdrum]

Let the plugin take care of how many parallel containers are up and on which ports they can be reached.
Also less verbose maven commands for the typing impatient

[adamretter]

@duncdrum I think this needs a little further explanation - at least I don't quite understand what the problem and proposed solution here is.

[duncdrum]

http://dmp.fabric8.io/#start-configuration

[duncdrum]

in particular we should utilize the daemons randomly assigned ports, in the pom, instead of providing matching pairs as system variables to maven, instead of:

<ports>${docker.test.port}:${docker.test.port}</ports>

use

<ports>host.port:8080</ports>