New features

Add support for server to server transaction confirmation callback.

The documentation has been improved. The README.md is available via Drupal's help system and has support for the Markdown module.

Some internal variable's are renamed to allow more generic future improvements.

The CBID format will be validated when saving the settings form.

Release 8.2.20

This contains the update to the most current paragraphs release. This also means that we switch to the
paragraphs "experimental" widget. The classic widget will still work, but it will not contain the Thunder specific
enhancements like adding paragraphs in between other paragraphs or splitting text paragraphs.
All the Thunder enhancements of paragraphs are now moved out of the distribution into the paragraphs_features module

• Issue #2979324: Changed the z-index to 10 for the selected view columns check icon, so that it could go over all other position: absolute labels for (Images, Videos, Documents, ...).

- Fixed a warning when trying to fetch concept information for a search space using multiple projects.
- Added the possibility to make facets searchable.
- Added the possibility to choose the date format in the PP GraphSearch configuration
- Added the possibility to choose the link target int the PP GraphSearch configuration.
- Replaced drupal_set_message() and drupal_get_messages() since they became deprecated.

Changes since 8.x-1.7:

• Update typo, composer.json, .editorconfig and code style.
• #2978884: Add support for content revision id as an argument.
• #2929555 by drclaw: Add formatter weight