Update for #2260121.
Update test class namespaces in mocks thanks to #2260121.
Update for context changes in #2293205.
Issue #2323927 by dsnopek | dawehner: Rename page_manager.menu_links.yml -> page_manager.links.menu.yml.
Issue #2332665 by Hydra: Added composer.json file.
Update for $form_state improvements.
FormState no longer has a constructor.
Issue #2340931 by Berdir: Access control and _page to page_manager_page rename.
Update for hook_permission removal.
Issue #2342923 by tim.plunkett: Ensure content_translation works when node/% is overridden with a route.
Fix PageManagerAdminTest.
Update cache tag code for #2340123.
add berdir title patch