Allow users to expose ports from the pod to the host

we need to allow users to expose ports to the host for the purposes
of networking, like a webserver.  the port exposure must be done at
the time the pod is created.

strictly speaking, the port exposure occurs on the infra container.

Signed-off-by: baude <bbaude@redhat.com>

pkg/spec/createconfig.go

@@ -335,7 +335,6 @@ func (c *CreateConfig) GetContainerCreateOptions(runtime *libpod.Runtime) ([]lib
 		}
 		options = append(options, runtime.WithPod(pod))
 	}
-
 	if len(c.PortBindings) > 0 {
 		portBindings, err = c.CreatePortBindings()
 		if err != nil {