Merge branch 'feature_AutomaticRelatedNews' into 'master'

Classes/Controller/AbstractController.php

Classes/Controller/LatestController.php

Classes/Controller/ListByCategoryController.php

Classes/Controller/NewsByAuthorController.php

Classes/Controller/OverviewController.php

Classes/Controller/SingleViewController.php

Classes/Domain/Repository/NewsRepository.php

Classes/Domain/Service/NewsService.php

Classes/ViewHelpers/RelatedViewHelper.php

Configuration/TypoScript/Frontend/constants.typoscript

Configuration/TypoScript/Frontend/setup.typoscript

Resources/Private/Partials/TeaserRelated.html

Resources/Private/Templates/SingleView/SingleView.html