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.
@parlarjb Can I get your help with this section? I think what we need to show here is this: 
1) Disabled versions of all input types, if they exist (dropdown, field, button, radio button, etc.)
2) Explanation of when and why disabled states are used (I can provide this)