Convert image all v2.8 changes: Added PHP directive default_socket_timeout to ensure dead hot links timeout in a short time.
Convert image all v2.7 changes: Added Exclude domain to options page.
Convert image all v2.6 changes: Fixed function that deletes temporary files if option is selected.
Convert image all v2.5 changes: Now using improved code to download hot linked images.
Convert image all v2.2 changes: Added code to prevent very large animated GIFs from timing out during thumbnail creation.
Convert image all v2.1 changes: Added function called 'Convert all images to attachments' to the Rebuild caches page.
Convert image all v1.9 changes: Now supports XF v2.0 and v2.1.
Convert image all v1.8 changes: Now using Guzzle for HTTP requests.
