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 think "(In Encore, see what we use in Support Services for an example of this.)" could be more specific -- what page in Support Services? Which component?