Add license info for exceptions.py

Add license info for exceptions.py

Change-Id: Ia6b8737d514183d04dd7017a8fe49dcb914f376d

muranodashboard/exceptions.py

@@ -1,3 +1,16 @@
+#    Copyright (c) 2015 Mirantis, Inc.
+#
+#    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.
 
 from muranoclient.common import exceptions as muranoclient_exc