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'd rephrase with something like this.

> This sub-site provides development teams at Rackspace with a set of design patterns, to help ensure a consistent  and unified look-and-feel for all products under the Encore umbrella.