Merge pull request #22681 from owncloud/add-autodiscovery-for-ocs

apps/federatedfilesharing/lib/discoverymanager.php

apps/federatedfilesharing/lib/notifications.php

apps/federatedfilesharing/tests/DiscoveryManagerTest.php

apps/files_sharing/ajax/external.php

apps/files_sharing/api/remote.php

apps/files_sharing/api/server2server.php

apps/files_sharing/appinfo/application.php

apps/files_sharing/lib/external/manager.php

apps/files_sharing/lib/external/storage.php

apps/files_sharing/lib/hooks.php

apps/files_sharing/tests/external/managertest.php

apps/files_sharing/tests/server2server.php

lib/private/share/constants.php

lib/private/share/share.php

lib/private/share20/providerfactory.php