Right slide moves entire length of carousel.

it does keep adding more images than it needs to loop, so that
needs to be addressed in the future, but it hasn't slowed down
too much for me (i think cause i'm $.cloning...)
Rabbit hole refactoring.

prolly not gonna work.
Animation works in both directions.

need to:

- implement a 'clear' function so the cloning doesn't get
so out of hand.

- make variable names less long and more readable.
Merge pull request #9 from vipyne/slider-animation-distance

Slider animation distance