Turbolinks

Yes, time for turbolinks!

Use [kossnocorp/jquery.turbolinks](https://github.com/kossnocorp/jquery.turbolinks) to ease the pain of transition of jquery ready event, which also suggests

```js
/* BAD: don't bind 'document' events while inside $()! */
$(function() {
  $(document).on('click', 'button', function() { ... })
});

/* Good: events are bound outside a $() wrapper. */
$(document).on('click', 'button', function() { ... })
```