Regarding to:
http://blog.tompawlak.org/new-features-node-express-4

Many middlewares are now external deps, and app.configure no longer
exists.
Big readme cleanup

 - Convert to unix line endings
 - Remove anything other than module init
 - Improve text in places
Merge pull request #72 from jokesterfr/update-to-express-4.x.x

Update examples to express 4