code: public Server update(String id, Server server) throws IOException, MailosaurException {
      	return client.request("PUT", "api/servers/" + id, server).parseAs(Server.class);
      }
docs: Update a server.
  Updats a single server and returns it.
  
  @param id The identifier of the server to be updated.
  @param server the Server value
  @throws MailosaurException thrown if the request is rejected by server
  @throws IOException
  @return the Server object if successful.