Seriously. They even copied his text verbatim. The original code didn't mention any license which I don't think means it's a free-for-all. Also, they apparently copied the code before he pushed a bug-fix I emailed him yesterday :)

So do you know what the license is. I'm planning to fork this awesomeness for some other variants, and I'm sure others are thinking about that too.

Best assume that there is no license unless it's posted obviously.