Tiny change to adress warning message displayed with current express (3.0.0rc5)

Your package.json specifies 

"express": "~3.0.0"

and the current version of express 3.0.0rc5 throws this warning when you use your module:

Warning: express.createServer() is deprecated, express
applications no longer inherit from http.Server,
please use:

  var express = require("express");
  var app = express();




I just made the suggested change.