def state_wait(set, state)
      # do a special wait, if waiting for operational (for dns)
      if state == "operational"
        set.each { |server| server.wait_for_operational_with_dns }
      else
        set.each { |server| server.wait_for_state(state) }
      end
    end
def state_wait(set, state)
      # do a special wait, if waiting for operational (for dns)
      if state == "operational"
        set.each { |server| server.wait_for_operational_with_dns }
      else
        set.each { |server| server.wait_for_state(state) }
      end
    end
Helper method, waits for state on a set of servers.
 * set<~Array> of servers to operate on
 * state<~String> state to wait for