Team-Sass/toolkit — pull request #20 by ChinggizKhan (2013-05-15 19:42:10+00:00)
Title: Add in pixel to rem, fix some minor requirements issues

There were a few issues with the requires for testing, fixed those as well as added in a mixin to do pixel-to-rem, that will print out something like this:
```sass
@include pixel-to-rem(font-size, 18px);
```

```css
font-size: 18px;
font-size: 1.125rem;
```