*   Extends `tf.keras.layers.Lambda` layers to support multi-argument lambdas,
    and keyword arguments when calling the layer.
*   Functional models now get constructed if *any* tensor in a layer call's
    arguments/keyword arguments comes from a keras input. Previously the
    functional api would only work if all of the elements in the first argument
    to the layer came from a keras input.

- The following components that do not expect non-empty, non-flag arguments will now print an error message and exit if an argument is specified: cloud-controller-manager, kube-apiserver, kube-controller-manager, kube-proxy, kubeadm {alpha|config|token|version}, kubemark. Flags should be prefixed with a single dash "-" (0x45) for short form or double...