Replaces direct use of aiokafka with osm_common message bus in agent and
lcmclient

Changes config handling to comply with the way it is handled in other modules,
by using a config file and overriding it with env vars.

Adds unit tests for message_bus_client.

Mon client remains using aiokafka directly, as there is no support yet for
auto_offset_reset configuration in osm_common.

Change-Id: I99615287cc934ce310105e86544a6bfe26bc0673
Signed-off-by: Benjamin Diaz <bdiaz@whitestack.com>
diff --git a/debian/python3-osm-policy-module.postinst b/debian/python3-osm-policy-module.postinst
index cd57d53..253eaaa 100644
--- a/debian/python3-osm-policy-module.postinst
+++ b/debian/python3-osm-policy-module.postinst
@@ -1,9 +1,32 @@
 #!/bin/bash
 
+# Copyright 2018 Whitestack, LLC
+# *************************************************************
+
+# This file is part of OSM Monitoring module
+# All Rights Reserved to Whitestack, LLC
+
+# 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.
+
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: bdiaz@whitestack.com or glavado@whitestack.com
+##
+
 echo "Installing python dependencies via pip..."
 pip3 install aiokafka==0.4.*
 pip3 install peewee==3.1.*
 pip3 install jsonschema==2.6.*
 pip3 install six==1.11.*
 pip3 install pyyaml==3.*
+pip3 install pymysql
 echo "Installation of python dependencies finished"
\ No newline at end of file