Bumping LBaaSv2 agent version for x.3.1 release.
Bumping LBaaSv2 agent version for x.3.1 release.

F5Networks/f5-openstack-agent,richbrowne/f5-openstack-agent,richbrowne/f5-openstack-agent,F5Networks/f5-openstack-agent,richbrowne/f5-openstack-agent,F5Networks/f5-openstack-agent