* fixes #3691 * `weave-daemonset-k8s-1.11.yaml` is `weave-daemonset-k8s-1.9.yaml` plus `priorityClassName: system-node-critical` * notice that a Kubernetes cluster created with `kubeadm` has its `kube-proxy`s marked as `system-node-critical` (and several other pods, such as `kube-apiserver` marked as `system-cluster-critical`)