DO NOT MERGE YET: Demo site V2

Looking for team feedback (copy, angular.js optimization) for the V2 style guide demo site. (rackerlabs.github.io/encore-ui/)

Going to continue submitting commits, especially those marked FIXME.
Yeah, I had to do something for this back when the demo was a single page. Unfortunately the solution wasn't pretty:
https://github.com/rackerlabs/encore-ui/blob/f554dc05150558668820879a4444c2c2b5dd5e48/demo/index.html#L38

Trying that out here, it doesn't seem to be working too well...