test_method is temporary added to receive to_hash from the models in vdc.
work around to create an entry for the network table.
database_mediator receives and converts the http params, then creates a DB entry through the node_api. (only for network table)
Added destroy_entry method.
Added translation for NetworkVif
Renamed DatabaseMediator to VdcVnetPlugin
Fixed the actor's name of vdc_vnet_plugin
Modified vdc_vnet_plugin as a plugin
vnmgr cluster contains the actor of vdc_vnet_plugin.
Updated the version of zeromq package.
Renamed vdc_vnet_spec file
Merge branch 'master' into feature-vdc-vnet-integration

Conflicts:
	deployment/packagebuild/packages.d/vnet/wakame-vnet-common/recipe.rb
Merge pull request #189 from axsh/feature-vdc-vnet-integration

Feature vdc vnet integration
Merge remote branch 'origin/master' into refactor-tunnels