New features

Issue #2843941 by Ahmad Abbad: Initial starter work on the varbase hero slider media.

This alpha release does not contain much of a UI, and testing has been limited, but it has been used on some real world production sites, so I thought we may as well make it available for others with a big 'alpha' label on it :-)

See #2825186: META: Drupal 8 version (D8) of Language Hierarchy roadmap for a roadmap of work needed for the D8 version.

First stable release.

Diff is pretty much stable and we feel it's time for a release!

Since Beta 2, only minimum amount of breaking changes have been done. Most importantly, the configuration / diff builder settings handling wasn't clean and was overhauled.

Experimental support to display images in diffs is added. We don't know yet how to make this more pluggable, thus it's a hardcoded special case. #2840566: Make rich diff pluggable