Merge pull request #12879 from owncloud/mountconfig

apps/files/tests/ajax_rename.php

apps/files/tests/helper.php

apps/files_external/lib/config/configadapter.php

apps/files_trashbin/lib/helper.php

lib/private/connector/sabre/directory.php

lib/private/connector/sabre/objecttree.php

lib/private/files/fileinfo.php

lib/private/files/mount/mountpoint.php

lib/private/files/node/node.php

lib/private/files/view.php

lib/private/preview.php

lib/public/files/fileinfo.php

lib/public/files/mount/imountpoint.php

tests/lib/connector/sabre/file.php

tests/lib/connector/sabre/objecttree.php

tests/lib/files/node/file.php

tests/lib/files/node/folder.php

tests/lib/files/node/node.php

tests/lib/files/node/root.php