title: is it possible to download images from cache memory in picasso?
body: <p>I was using <code>UniversalImageDownloader</code> for my app.in UIL we can save images from cache memory.</p>
  
  <pre><code> File cachedImage = ImageLoader.getInstance().getDiscCache().get(imageUrl);
              if (cachedImage.exists())
              {// code for save 2 sd
                             }
  </code></pre>
  
  <p>Is it possible in picasso?</p>