update

* [new] aRotator in aRotator
* [new] $("#element").aRotator('first') - slide to first slide
* [new] slides (<li>) can have data-title="title" attribute to show
title in the paging
* [new] slides (<li>) can have data-href="/mylink/single/" attribute to
add links to the paging
* [new] onSlideStart parameter - execute a function on slide start
* [new] onSlideEnd parameter - execute a function on slide end