Add half-width standard item slices, including Small Slow V

![screen shot 2014-09-22 at 16 31 30](https://cloud.githubusercontent.com/assets/867233/4358846/8f9838be-426d-11e4-985e-9c93c1ca9807.png)

Sorry I meant it should live inside `head.facia.scss` instead to restrict it just to facia pages for the time being. And also `ie9.head.facia.scss` and `old-ie.head.facia.scss` :wink: