Ability to add data attributes to individual objects

jQuery-viewport-checker is the perfect jquery plugin to use with the animate.css project. I, however, wanted the ability to be able to add different animations (classes) and offsets to different elements as I desired.

The best solution was to allow one to set data attributes on each element as required.

I have added an example html file (based on index.html) that shows it in action. I hope you find this feature worthy of your awesome plugin!