def method_missing(name, *args, &block) # :nodoc:
      if writable_master.respond_to?(name)
        Client.send(:send_to_master, name)
        send(name, *args, &block)
      else
        super
      end
    end
def method_missing(name, *args, &block) # :nodoc:
      if writable_master.respond_to?(name)
        Client.send(:send_to_master, name)
        send(name, *args, &block)
      else
        super
      end
    end
Send everything else to master.