func NewServer() http.Handler {
	r := mux.NewRouter()
	r.Path("/hello").Methods("GET").HandlerFunc(handleHello)
	return r
}
func NewServer() http.Handler {
	r := mux.NewRouter()
	r.Path("/hello").Methods("GET").HandlerFunc(handleHello)
	return r
}
// NewServer makes a new example server.