stripping querystring from css urls breaks @font_face IE8 compatibility

[bdentino]

Duo is stripping the ?#iefix querystring from css files, which breaks the hack used by FontSquirrel and lots of other webfont generators to stop IE 8 and below from barfing on the proceeding 'format' tag. (Here's a good explanation of why this is required for older IE support)

Workaround we're using is to revert to the older smiley hack described here: http://www.paulirish.com/2009/bulletproof-font-face-implementation-syntax/