Refactors app.js
Refactors app.js

Replaces http.http.createServer(app).listen(...) with
app.listen(...)

joemccann/dillinger,joemccann/dillinger,benjamin-albert/dillinger,joemccann/dillinger,jiusanzhou/dillinger,benjamin-albert/dillinger,jiusanzhou/dillinger,jiusanzhou/dillinger