title: Paperclip fetch image directly via url
body: <p>It's it possible to fetch an image via url using PaperClip ? It's possible with fleximage, but fleximage has no support for Rails3 so I've switched over to paperclip.</p>
  
  <p>At present, I'm fetching the image via curl, saving it on the hdd and load it via image_file of paperclip.</p>
  
  <p>I've found no real solution via google, so hopefully you can help me.</p>