nzakas/parser-lib — pull request #100 by mattiacci (2014-01-25 10:45:32+00:00)
Title: Allow underscores in identifiers

From what I can tell reading about [CSS3 syntax](http://www.w3.org/TR/css3-syntax/#typedef-ident-token) (please verify), underscores are valid in identifiers.

Resolves #99 / https://github.com/stubbornella/csslint/issues/450.