Versionupgrade

* Added a bower.json so that dependencies (and their versions) are clearly marked in the project (see [Bower][1] for more details)
* The Internet isn't running out of space anytime soon, so we'll also commit the dependencies to the browser.
* Created a separated file js/crashbrowser.js that holds the main logic for the page.
* Replaced ba-bbq with purl for jQuery URL parsing.

Some additional refactoring is to follow, but I thought this made a good stopping point for a pull request.

[1]: http://bower.io