jorgebastida/glue — pull request #92 by apinc (2013-05-15 21:55:19+00:00)
Title: Add directory hierarchy in css classname

With an Directory structure like this:
```
\hierarchical
bleu.png
\a
green.png
\b
red.png
```

CSS class name will be :
- .sprite-hierarchical-a-b-red
- .sprite-hierarchical-a-green
- .sprite-hierarchical-blue

This allow me to have 2 images with the same name in different directory.