1.1.0

* [new] feature: use aRotator inside aRotator
* [new] onSlideStart parameter - execute a function on slide start
* [new] onSlideEnd parameter - execute a function on slide end
* [new] `<li>` slides now can take data-title and data-href attrubutes
for using in paging
* [new] `$('#slider').aRotator('first');` go to the first slide