Replaces cat2 sprite/kitten sprite from the orange one to a calico cat.

Sorry, but the orange one is an eyesore.

Sprite by LePinkyFace

![ss 2014-01-20 at 09 41 58](https://f.cloud.github.com/assets/4043940/1960875/d58755e6-825e-11e3-9e45-70011cff2678.png)

I am aware the front/sides of the cat don't match exactly in that picture, but in the dmi they do.
Specifically the head's ear color didn't get flipped when it was mirrored, and the front left paw of the cat is supposed to be black.
Kitten is fine in picture and dmi.