Issue #2348547 by tim.plunkett, estoyausente: Fixed CommentViewBuilder should use static where possible, subclassing is currently too painful.
Issue #2335003 by joshi.rohit100, rootwork, tuutti | joelpittet: Rename task-list.html.twig to maintenance-task-list.html.twig.
Issue #2347893 by mitrpaka | mikeker: Fixed ViewUnitTestBase extends DrupalUnitTestBase, which has been deprecated.
Issue #2091379 by amitgoyal, greggmarshall, petrpo, rootwork, er.pushpinderrana, paboden | ifrik: Update hook_help for Toolbar module.