Ember-Rails, what a clever gem.

So we've add the 'ember-rails' gem and run `bundle install`. There is a bit of
stuff happening behind the scenes now. In case you don't know, let me tell you
that Ember is made by a team that loves Rails (core contributors and the like).
They fit together well.

The 'ember-rails' gem has noticed that it exists alongside the 'coffee-rails'
gem so hey, why not use CoffeeScript in our Ember app? This kind of
mysterious introspective metaprogramming is not something you find in other
programming languages and frameworks. In NodeJS every module's dependency is
strictly specified and local, nothing is shared. I think you could argue the
case both ways.

Our app doesn't do anything just yet, but we'll start setting up controllers and
views shortly using the built-in boilerplate generators.