Introduces three new Mido bundles for data access interfaces and implementations.

- org.opendaylight.controller.networkconfig.neutron.midonet.cluster
  Defines interfaces for data access module API and data models.

- org.opendaylight.controller.networkconfig.neutron.midonet.cluster.local
  Provides implementations for data access module.

- org.opendaylight.controller.networkconfig.neutron.midonet.cluster.local.data
  Provides implementations for data model.
Merge branch 'dev/tomohiko/odl_midonet_cluster/20131213' of github.com:midokura/odp-controller into dev/tomohiko/odl_midonet_cluster/20131213

Conflicts:
	opendaylight/networkconfiguration/neutron/midonet/src/main/java/org/opendaylight/controller/networkconfig/neutron/midonet/MidonetNetworkHandler.java