Update Chaplin app

[paulmillr]

1. Improve styling in Chaplin app.
2. Switch Chaplin app from Backbone to Exoskeleton.

These two commits should be separated from each other since I want to show Chaplin users one particular commit with the switch to Exos.

[passy]

Could you also update the entry on the homepage? It still says it's using Backbone.

[paulmillr]

Well...Chaplin uses Backbone and this is the main selling point. Exoskeleton is just a better Backbone, but it is not widely known.

So I suggest to leave the "Backbone" there. But description could also be:

"description": "Chaplin is an architecture for JavaScript applications using the Backbone.js library. Chaplin addresses Backbone’s limitations by providing a lightweight and flexible structure that features well-proven design patterns and best practices. In the app, Backbone is replaced with [Exoskeleton](http://exosjs.com), faster and leaner Backbone without dependencies on jQuery and underscore.",

but it will be kinda big, won't it?

[passy]

I agree, the shorter one is better. You explain your switch in the README, so that should be fine.

[passy]

Hm, for some reason I'm not seeing the learn bar. Neither on the live version nor in your update. Do you know what's going on there?

[paulmillr]

nope this was weird for me too

[passy]

Haha, I think I know why now. :)