updating version specification

Updating the way versioning is done to line up with other projects
in openstack. This change makes it so a commit will no longer be
required update the version of this package, now tagging will
handle updating the version.

Change-Id: I4b5a1674cbeedba5b2afe3aef64dd10156022ff7

openstack_auth/__init__.py

@@ -1,2 +1,17 @@
-# following PEP 386
-__version__ = "1.1.3"
+# 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.
+
+import pbr.version
+
+
+__version__ = pbr.version.VersionInfo('django_openstack_auth').version_string()