Add skew test using kubeadm which should be identical to ci-kubernetes-e2e-gce-1-6-1-7-upgrade-master in functionality
Add skew test using kubeadm which should be identical to ci-kubernetes-e2e-gce-1-6-1-7-upgrade-master in functionality

GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid