title: Django-image-cropping + easy_thumbnails + django-watermarker
body: <p>Has anyone tried to use all of these features together? I can combine only any 2 of them together, but cant figure out how to use all 3, and i definitely need it.
  I want free cropping to be done from admin(to choose which part of image will be displayed in result), get it watermarked and use some thumbnail alias to resize/compress it via easy thumbnails.</p>
  
  <p>It should be something like this:
  <code>{% cropped_thumbnail Event.photo.pure_events_list.url|watermark:"General watermark" "cropping_free" %}</code>
  Where:
  <code>pure_events_list</code> is thumbnail alias for easy thumbnails
  <code>|watermark:"General watermark"</code> is filter to get image watermarked by url and return new url of watermarked image</p>
  
  <p>Thanks in advance for any help!</p>