Make tox config work.
Make tox config work.

Change-Id: Ic81c7bb0fa2fe5c73200a9195630a0d5bb999e7d

gotostack/neutron-lbaas,schoksey/networking-odl,CiscoSystems/networking-odl,openstack/networking-odl,gandelman-a/neutron-lbaas,mestery/x-stackforge-odl,FedericoRessi/networking-odl,openstack/neutron-fwaas,gandelman-a/neutron-lbaas,schoksey/networking-odl,CiscoSystems/networking-odl,gaolichuang/neutron-fwaas,dougwig/x-neutron-vpnaas,openstack/neutron-fwaas,citrix-openstack-build/neutron-fwaas,openstack/neutron-vpnaas,citrix-openstack-build/neutron-lbaas,flavio-fernandes/networking-odl,openstack/networking-odl,openstack/neutron-vpnaas,citrix-openstack-build/neutron-vpnaas,FedericoRessi/networking-odl,gotostack/neutron-lbaas,gandelman-a/neutron-lbaas,gaolichuang/neutron-fwaas,gotostack/neutron-lbaas,openstack/networking-odl,dougwig/x-neutron-fwaas,flavio-fernandes/networking-odl,dougwig/x-neutron-lbaas