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.
"**Solidify copy and design language for action and cancel buttons**."

or even ""**Solidify copy and design language for action and cancel buttons *within modals*.**" if that's what you mean here.