CSS closing bracket scope not set

The closing } of CSS blocks does not have a scope set causing it to be incorrectly syntax highlighted with some themes.

I fixed this in the original TextMate bundle but it seems Sublime Text 3 has not pulled bundle fixes upstream. The fix is here:

https://github.com/textmate/css.tmbundle/pull/5/fi...

The same change line 253 of Packages/CSS/CSS.tmLaunaguge

Essentially the endCapture string value at that line needs change from \} to (\})