servers.go
func (c *Client) UpdateServer(updateServer *ServerOptions) (*Server, error) {
	server := new(Server)
	_, err := c.MakeApiRequest("PUT", "/1.0/servers/"+updateServer.Id, updateServer, &server)
	if err != nil {
		return nil, err
	}
	return server, nil
}
func (c *Client) UpdateServer(updateServer *ServerOptions) (*Server, error) {
	server := new(Server)
	_, err := c.MakeApiRequest("PUT", "/1.0/servers/"+updateServer.Id, updateServer, &server)
	if err != nil {
		return nil, err
	}
	return server, nil
}
// UpdateServer updates an existing server's attributes. Not all attributes can
// be changed after creation time (such as Image, ServerType and Zone).
//
// Specify the server you want to update using the ServerOptions Id field