lib/create-server.js
function routeURL() {
    var prefix = options.prefix || "",
      args = ["/" + prefix, ":resource"].concat(Array.prototype.slice.call(arguments));
    return path.join.apply(path, args);
  }
function routeURL() {
    var prefix = options.prefix || "",
      args = ["/" + prefix, ":resource"].concat(Array.prototype.slice.call(arguments));
    return path.join.apply(path, args);
  }
convenience method to create a routing URL