Just some small stuff with options

Hey man,

I was on a code reading spree and I saw your plugin in the jQuery Plugin Repository. Thought it was pretty neat so I decided to try and contribute.

Also, full disclosure, I've never submitted a pull request ever so I also just wanted to pop that cherry, haha.

But anyway, didn't really do anything major. Just two more options and a simple demo. Updated the docs for the two options.

Cheers