yeoman/grunt-usemin — pull request #106 by louisremi (2013-04-29 10:12:58+00:00)
Title: Preserve media attribute

I create responsive designs by splitting mobile and desktop css entirely and using the `media` attribute of the stylesheet links instead of @media rules in the css. So the css part of my index.html usually looks like this:

```css

```

I need grunt-usemin to preserve the media attribute of the mobile.css and desktop.css links.

This patch does just that. Logically, one block is required per media attribute.