Add PodIP to the info returned for a pod.
Fix integration tests with a check for nil
Add a unit test to validate behavior
Address Clayton's comment.
IntOrString for use in JSON/YAML

Specifying an API type as IntOrString will allow JSON and YAML to accept
either ints or strings with the same name.  For example, port names or
numbers.
Merge pull request #389 from brendandburns/podip

Add PodIP to the info returned for a pod.
Add Hostname to the docker run command.
Merge pull request #396 from brendandburns/hostname

Add Hostname to the docker run command.
Merge pull request #395 from thockin/cleanups

IntOrString for use in JSON/YAML