Renamed rename_uuid to rename.

Conflicts:

	vnet/lib/vnet/node_api/interface.rb
Added 'rename' command.
Added a method to create security_group entry.
Merge pull request #242 from axsh/fix-plugin-security-group

Added a method to create security_group entry.
Merge branch 'master' into refactor-models

Conflicts:
	vnet/lib/plugins/vdc_vnet_plugin.rb
Merge pull request #241 from axsh/refactor-models

Interface ports
Merge remote branch 'origin/master' into refactor-more-models

Conflicts:
	vnet/lib/plugins/vdc_vnet_plugin.rb
	vnet/lib/vnet/node_api/interface.rb
Added create/delete_with_transactions to NodeApi::EventBase.
Use new create_with_transaction in ActiveInterface.
Delete instead of updating old active_interface.
Properly do timeout in do_shutdown.
Link managers to vnmgr dcell node.
Cleaned up active_interface and datapath node_api.
Fixed table name in drop list.
Cleaned up and verified interface node_api and model. Added missing dependencies and marked those requiring events.