title: Paperclip change default path and hash image names
body: <p>I'm new to Rails and using Paperclip, I have it set up on my model already without issue. I just don't like the path it's generating for my images right now (<code>:root_path/system/users/avatars/000/000/001</code>) I really don't even understand it. How can I modify this default path for my images to something more friendly? And how can I hash the image names? </p>