* Integration test for floatingip cluster
* Implements mocking of floatingIP (only list for now)
* Expands various cloudmocks
* Fixes an NPR in openstack validation
* Fixes a bug where kops tries to use DNS even if the cluster is gossip
We don't call klog.InitFlags yet, because that will cause a flag
redefinition error until we get everyone to stop using glog. That
will happen when we update to k8s 1.13.