Updated all libraries:
- Updated Ember to version 1.0.0-pre.4.
- Updated Ember-Data to revision 11.
- Updated Handlebars to version 1.0.rc.2.
- Updated googleAnalytics.
- Updated Jasmine-jQuery to version 1.4.2.
- Updated jQuery to version 1.9.0.
- Updated jQuery-UI to version 1.10.0.
- Renamed each library-files to not include the version in the filename. Easier to update versions, without having to change main.js

Updated main.css and main.js accordingly.
Moved /img/lib to separate folders for each library.
Added description to package.json.