merge master into webdav-injection

.scrutinizer.yml

apps/files/css/files.css

apps/files/js/file-upload.js

apps/files/js/fileactions.js

apps/files/js/filelist.js

apps/files/js/files.js

apps/files/l10n/ar.php

apps/files/l10n/ast.php

apps/files/l10n/bg_BG.php

apps/files/l10n/bn_BD.php

apps/files/l10n/ca.php

apps/files/l10n/cs_CZ.php

apps/files/l10n/cy_GB.php

apps/files/l10n/da.php

apps/files/l10n/de.php

apps/files/l10n/de_CH.php

apps/files/l10n/de_DE.php

apps/files/l10n/el.php

apps/files/l10n/en_GB.php

apps/files/l10n/eo.php