little cleanup

just cleaned up this thing a little, removed some trailing whitespace, made the index a jade and added a README :)

PS: I want to give this thing some jquery magic and make a light version in the next few days (so if you're planing to do such a thing I would love to see your vision on dribbble or so) ^^

// edit: and I just made the dropdown button a real button so there is no cursor and such nasty things ^^ + made the little sliders work