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.
So this actually doesn't need a `.subdued`, but is part of the confusion described here: https://github.com/rackerlabs/encore-ui/pull/669#discussion_r21682732