add parameter for converged node

Change-Id: I7bbf5cd522458a3b4feb90356afc5099f72df93f
converged node support for account.pp

If swift::converged_node is set to true then the swift node
will leave copying of the ringfiles to proxy.pp

Change-Id: I0c66f520b5c9394c9b2f6cc944b45e3fddbf59e1
converged node support for container.pp

If swift::converged_node is set to true then the swift node
will leave copying of the ringfiles to proxy.pp

Change-Id: I3de60cdbf28235f89beb14af59d70fa678009d71
converged node support for object.pp

If swift::converged_node is set to true then the swift node
will leave copying of the ringfiles to proxy.pp

Change-Id: Ia48ef31f655a6a60ce45c937fae255b3ac58592e