merge master into filesystem

apps/files/l10n/et_EE.php

apps/files/l10n/gl.php

apps/files/l10n/ko.php

apps/files/l10n/sl.php

apps/files/l10n/uk.php

apps/files/l10n/vi.php

apps/files_encryption/l10n/gl.php

apps/files_encryption/l10n/ko.php

apps/files_encryption/l10n/vi.php

apps/files_external/l10n/gl.php

apps/files_external/l10n/ko.php

apps/files_external/l10n/uk.php

apps/files_sharing/l10n/gl.php

apps/files_sharing/l10n/ko.php

apps/files_sharing/l10n/ta_LK.php

apps/files_sharing/l10n/vi.php

apps/files_versions/l10n/gl.php

apps/files_versions/l10n/ko.php

apps/files_versions/l10n/ta_LK.php

apps/files_versions/l10n/vi.php