The goals of this fork are:
- Add new 'max_viewer_width' and 'max_viewer_height' config.php options that will set the default max width/height of the uploaded image in the TinyMCE editor, but won't alter the original image file. [DONE]
- Provide a drag-n-drop target for files in the popup window (TinyMCE version 4 only). [DONE]
- Allow multiple files to be uploaded at once (TinyMCE version 4 only, and contingent on the max_file_uploads specified in php.ini). [DONE]