Merge pull request #12577 from owncloud/public-mount-api

apps/files_external/appinfo/app.php

apps/files_external/lib/config.php

apps/files_external/lib/config/configadapter.php

apps/files_external/lib/personalmount.php

apps/files_sharing/lib/external/manager.php

apps/files_sharing/lib/external/mount.php

apps/files_sharing/lib/sharedmount.php

lib/private/files/config/mountprovidercollection.php

lib/private/files/filesystem.php

lib/private/files/mount/manager.php

lib/private/files/mount/mountpoint.php

lib/private/files/node/folder.php

lib/private/files/node/root.php

lib/private/files/storage/storagefactory.php

lib/private/files/utils/scanner.php

lib/private/files/view.php

lib/private/server.php

lib/public/files/config/imountprovider.php

lib/public/files/config/imountprovidercollection.php

lib/public/files/mount/imountpoint.php