Initial commit

* Rails 4.0.2 app
* Lineman 0.21.2 app
Add a lineman-rails plugin to the lineman project.

Allow our symlink to lineman-rails to exist.
Got dev mode working.

Run both lineman & rails, then visit:

localhost:8000/widgets

You'll see a template rendered by ERB that
loads lineman CSS & JS to render our hello
world.