Marionette dashboard shootout 

:feelsgood: :gun: :sheep: 

Just for an idea of time, this took around 2.5 hours. Below @brian-mann explains the structure. 

https://github.com/marionettejs/

![out](https://f.cloud.github.com/assets/883126/2254132/e4fe8f2c-9dce-11e3-969d-463250805fa7.gif)

Big thanks to @brian-mann for pairing with me on this.

If you are interested in this dev flow, checkout www.backbonerails.com (Brian made this).
It is a highly scalable approach for building Marionette + Backbone.js Apps.


fixes #2202
for #2144