Added scripts to automate setting up cluster

Scripts support custom number of controllers and workers as well as a
specific version of Kubernetes by exporting NUM_CONTROLLERS,
NUM_WORKERS, and KUBERNETES_VERSION respectively. This has only been
tested using 3 controllers and workers >= 3 using Kubernetes version
1.5.1.

scripts/kube-up.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/bash
+set -x
+
+if [[ -z ${NUM_CONTROLLERS} || -z ${NUM_WORKERS} || -z ${KUBERNETES_VERSION} ]]; then
+    echo "Must set NUM_CONTROLLERS, NUM_WORKERS and KUBERNETES_VERSION environment variables"
+    exit 1
+fi
+
+./start-infra-gcp.sh
+./setup-ca.sh
+./bootstrap-etcd.sh
+./bootstrap-controllers.sh
+./bootstrap-workers.sh
+./kubectl-remote-access.sh
+./create-routes.sh
+./deploy-dns.sh
+./smoke-test.sh
+#./cleanup.sh