yui/pure-site — pull request #182 by ericf (2013-12-20 18:55:35+00:00)
Title: Add support for old IE versions of local CSS files

This allows the following:

{{addLocalCSS "/css/home.css" hasOldIE=true}}

Which will wrap the `` to "/css/home.css" in an IE conditional comment and serve up "/css/home-old-ie.css" to IE < 9.