visionmedia/css-parse — pull request #67 by dvdln (2013-12-23 23:06:07+00:00)
Title: Add option for nested CSS rules.

Yes, it's not a part of the CSS spec, but it's a common enough feature in CSS preprocessors that I feel it has a place in `css-parse`. Because it's non-standard, I defaulted the feature to be disabled unless the `nested` option is set to `true`.