Fixed function that deletes temporary files if option is selected.
Now using improved code to download hot linked images.
Now using XF framework for database and file system.
Fixed issue where a double quote in the image URL caused a server error.
Added code to prevent very large animated GIFs from timing out during thumbnail creation.
Added function called 'Convert all images to attachments' to the Rebuild caches page.
Images which exceed width and height limits are now properly resized.