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.
I'm seeing some errant colons here, and I'm not sure why that's happening :/

![screen_shot_2014-12-10_at_11_10_05_am](https://cloud.githubusercontent.com/assets/1529366/5380384/46a2e694-805d-11e4-8877-26b139e759ef.png)