4SEO PRO - joomla seo plugin 6.12.0.2692

• Exclude (fake) single-image Ignite Gallery pages from sitemap
• IgniteGallery, exclude menu item from content id to detect duplicate pages better
• Replaced width by dimension in help message as it's used now in both contexts, width and height
• Caption and titles in images sitemaps are not properly encoded
• Not properly checking if an image has already been seen before trying to store it