Spinner

This adds a spinner to the `Queue Album` button. This request takes a little time, so lets provide some feedback.

This pull also not only updates FontAwesome to `3.2.1`, but includes it as a sass enabled gem instead of static files.

![queueing](https://f.cloud.github.com/assets/260/987084/be9d62ce-08e4-11e3-9b2a-991b546141d2.gif)