Cleaned Skull

I've spent some time and learned meshlab and blender a bit more and attempted to clean up this skull. Not a perfect job I'm sure, but better.

Being from a biomedical scan, the original had lots of internal details that are really cool to explore, but aren't too interesting when you're printing the object. I've removed all of the insides of the skull, and closed all the holes. (I never knew human heads had so many holes -- much more than the obvious 7, and all the ducts to go with them too.)