Unable to run example due to missing modules

[mhaberl]

TL;DR: koa-render and jade packages are missing for the example to run

How to reproduce: When trying to run the example following instructions after npm install node --harmony app.js user gets an error:

Error: Cannot find module 'koa-render'

After running: npm install koa-render node --harmony app.js

and opening the http://localhost:3000/ user gets an error:

Error: Cannot find module 'jade'

After running npm install jade the app runs fine.