fix: listen on correct @port
refactor: better use of callbacks & app
adds head.js for loading vendor & app assets + their tiny html modernizer

- using cloudflare cdn in production to speed things up
- the modernizer will let us have better/more responsive css
- also adds a new logo  :)
bootstrap Primus on client

- FIXME ideally the client would load from build/client but i couldn't get the App.ls to load (async issue)