0em, 0%, etc.. should all be 0

[rstacruz]

div { margin: 0%; } should sqwish down to div{margin:0}. Same goes for any other unit. I see 0em is often misguidedly used around...

If I put in a pull req for this by simply making the regex rules more relaxed, can that be merged in?

[ded]

this should be easy to add in