Moved event bus to common lib

Change-Id: I530498db2d4fd3ba644dd4a92e0b6ce74bce3a27
diff --git a/ofagent/main.py b/ofagent/main.py
index 1d6149e..3e31e31 100755
--- a/ofagent/main.py
+++ b/ofagent/main.py
@@ -16,13 +16,14 @@
 #
 import argparse
 import os
+
 import yaml
 from twisted.internet import reactor
 from twisted.internet.defer import inlineCallbacks
 
+from common.structlog_setup import setup_logging
 from common.utils.dockerhelpers import get_my_containers_name
 from common.utils.nethelpers import get_my_primary_local_ipv4
-from common.utils.structlog_setup import setup_logging
 from connection_mgr import ConnectionManager
 
 defs = dict(