Added coffee-rails gem.
Added slim gem.
Added rspec-rails gem.
Added rspec rails to spec_helper.rb
Added manifests controller.
Added manifests to the routes.
Added a rails engine.
Modified the environment for the asset pipeline.
Implemented asset class.
Added template for testing.
Added asset to application.js
Compiled assets.
Added spec for manifest.
Removed rubinius as it is raising an error.
Merge pull request #3 from alexfalkowski/arf/implement-asset

Arf/implement asset