Move to the new oslo_config and oslo_log modules

Since a couple of releases ago, the old oslo.config is now
oslo_config, the same thing happening to oslo.log as well.
This patch also removes the vendorized openstack package,
since it's redundant now that oslo_log is out of the
incubator.

Change-Id: Iae1318aa0d2a9aab2d4f6af7d11ed1dfda51e733

cloudbaseinit/tests/__init__.py

@@ -1,13 +0,0 @@
-# Copyright 2013 Cloudbase Solutions Srl
-#
-#    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.