Remove workflow that deleted and dismantled the network and floating_ip
when stopping or suspending.
Add service.drivers.openstack_driver.delete_ports. Use at your own risk!
	modified:   api/instance.py
	modified:   service/drivers/openstackNetworkManager.py
	modified:   service/drivers/openstack_driver.py
	modified:   service/mixins/driver.py
	modified:   service/tasks/driver.py