New uppersAndDowners option

An option to show how many percent of the votes on a comment (or link) are upvotes.

If you have any respect for your creation, look at my code before you use it. I don't consider myself very experienced, and if something looks wrong in the code, it is probably because it is.

It works well for me with Firefox 10.0.2 in Linux Mint. I have not tested in other browsers at all. I have tried my best but look out for silly mistakes.

This probably isn't worth much as a coding endeavor, but the spirit of the addition is what matters. Useful for people with OCD, so they don't have to calculate this detail in their head.

I didn't really chose those colors for a reason, I didn't think much about it, but in retrospect I think maybe color blind people will have problems with it. I feel for a pause right know though, so that can be changed/fixed later.