title: SmartImageVIew, I would like to force refresh (and not caching)
body: <p>I am using this useful class that allow smart online downloading of images (from the loopj guys).
  It works fine, but i cannot force the "refresh" in the case of same name images that could have been changed in the server (example: I update my profile picture).
  So at the moment I am forcing the brutal delete of my app cache dir before the setImageUrl().
  It works, and some FileNotFoundException is raised. No big deal, but I hate having something that works "without really working", I don't know if you know what I mean :)
  Lots of thanks, again</p>