Also handle `&` and `.` in the `standardize()` method (see #6396)
Do not combine .js and .css files when running in debug mode (see #6450)
Support editing the front end preview page via the "url" parameter (see #6471)
Change the input field type of the back end search field to "search" (see #6455)
Make the `Controller::get*()` methods public static (see #6351)
Cleanup the `Module::renderNavigation()` method (see #6624)
Merge the „newsarchive“ and „newsarchive-empty“ templates
Merged the "newsarchive" and "newsarchive_empty" templates (see #6647)
Merge branch 'feature/merge-news-archive-empty' into develop
Remove the `DataContainer::load()` method (see #5441)
Added a markdown content element (see #6052)