Fixes pull request 2376
…s not a string, which caused a 'slice is not a method error'
…ers. Specs pass in IE6/8/9, Opera, FireFox, Chrome, Safari. FireFox returns % for margins, hence a special matcher in the specs.
…h-child(last), (first) and (only). Added nth-last-child.
…, so .toString() methods are called when an object is passed.
* Removes opera hack in Element.Style, apparently it isn't necessary anymore. All specs pass.
…turns % values. Fix by Dean Edwards http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291