Added Galleriffic

Galleriffic is a jQuery plugin that provides a rich, post-back free
experience optimized to handle high volumes of photos while conserving
bandwidth. It's widely used across the web and can be absolutely useful
to a lot of people to have it in CDNJS. :)

Link to website: http://www.twospy.com/galleriffic/
Link to repo:
http://code.google.com/p/galleriffic/source/browse/#svn/trunk/example

Note: I used v.2.0.1 because although the website reports still v.2.0,
2.0.1 exists and is different from v.2.0. Here the diff:
https://code.google.com/p/galleriffic/source/diff?spec=svn17&r=26&format=side&path=/trunk/example/js/jquery.galleriffic.js