GitLab

shr.el (shr-tag-img): Put a displayer in the text property.
gnus-util.el (gnus-find-text-property-region): New utility function.
gnus-html.el (gnus-html-display-image): Make the alt optional.
gnus-html.el (gnus-html-show-images): Remove.
gnus-art.el (gnus-article-show-images): New, more general function.
gnus-html.el, shr.el: Use image-url instead of gnus-image-url to unify the image url text properties.