title: Images not release in memory
body: <p>I have table with Images cell. Images download from internet and save in local disk. Count = 200. Tableview show this images. When scroll content to bottom, comes message memory warning... Used memory 250 - 300 mb O_O!!! Links to images that do not keep.</p>
  
  <pre><code>NSString *cellID = @"cellId";
  UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellID];
  ...
  NSString* imagePath = [arrayContent objectAtIndex:indexPath.row];
  UIImage* image = [[UIImage alloc] initWithContentsOfFile:imagePath];
  [cell.imageView setImage:image];
  </code></pre>
  
  <p>Why hide images not release?</p>