Update to Angular 1.2.4

* Use official bower.js repositories, rather than angular-all-unstable
* update using 'bower update'
* Update index.html to load additional, separate JS files
* Remove app/lib/angular-all-unstable from .gitignore
Update our code for Angular 1.2.4 compatibility

* Add ngAnimate & ngRoute modules to app
* Animation CSS classes are derived differently now