Wire in Sir Trevor for feature and static page WYSIWYG editing

(Sir Trevor)[http://madebymany.github.io/sir-trevor-js/] is a block-based WYSIWYG editor, that appears to be at least an 80% solution to our problem. This pull request wires in a simple page scaffold and applies the editor environment.

![screen shot 2014-01-28 at 8 44 39](https://f.cloud.github.com/assets/111218/2021201/82754dda-883b-11e3-9114-020c1e65344b.png)