Improving Scale.

Since its inception I've put more time in Scale than I initially thought I would. It has seen some improvements and can now scale directories too. The code has become a bit more modular and there's even a small preference pane which I added.

You can get it at: http://truncat.com/scale/Scale-0.5.1.zip

If you have more ideas or thing you'd like to see added, let me know in the comments.