Made file and file_list types for images work like the "Featured Image" in Wordpress: clicking on the image brings it up in the Media Manager.  I made this change because I knew the user would possibly want to edit meta information for images, and the old version that just saved the URL made it so the user would need to look up the image in the library again.  I was unable to get the image uploader to add the image to the search results like the featured image select does, but it will appear in the box on the right.