removes hack versions; splits update vendor and makes it optional

Signed-off-by: Mike Brown <brownwm@us.ibm.com>

hack/sort-vendor.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+
+# Copyright 2017 The Kubernetes Authors.
+# Copyright 2018 The containerd Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+source $(dirname "${BASH_SOURCE[0]}")/utils.sh
+cd ${ROOT}
+
+echo "Sort vendor.conf..."
+sort vendor.conf -o vendor.conf
+
+echo "Please commit the change made by this file..."