Add kernel support for UT and sample change in test code
move tap interface creation to createvmportinterface for test
1. Add support for flow action string to flow record table.
2. Added a contrail-flows utility to allow users to view
   flow records.
Connect with zookeeper only once
import logging
when started with reset_config option, cleanup the zookeeper nodes
Remove function call comment
SG testcase modification for Security group with Ingress/Egress ACL