0.5.1: Hotfixes for PHP 8 (surrim)

0.5: Added German translation.

0.4: Added legal gdpr/dsgvo info

0.3: Properly use the example() API method by returning, not echo'ing. Unimportant update.
Version 0.2
* Made it work with articles not having an extended part.
* Made trackbacks visible again (for templates supporting it), css class to be hidden configurable now.