Remove inline CSS and some whitespace nitpicking
Fix small HTML issues
Update Twitter Bootstrap to version 2.3.2
Upgrade jquery, backbone.js and underscore.js

Backbone from 0.3.3 to 1.0.0, underscore from 1.1.5 to 1.4.4, and jQuery
from 1.5.1 to 1.10.1. Also made adjustments in the app because of the
upgrades.