merge master into filesystem

apps/files/ajax/move.php

apps/files/css/files.css

apps/files/js/files.js

apps/files/l10n/cs_CZ.php

apps/files/l10n/da.php

apps/files/l10n/de.php

apps/files/l10n/de_DE.php

apps/files/l10n/el.php

apps/files/l10n/fi_FI.php

apps/files/l10n/fr.php

apps/files/l10n/hu_HU.php

apps/files/l10n/ja_JP.php

apps/files/l10n/pt_PT.php

apps/files/l10n/sv.php

apps/files/l10n/th_TH.php

apps/files_encryption/l10n/da.php

apps/files_encryption/l10n/de.php

apps/files_encryption/l10n/de_DE.php

apps/files_encryption/l10n/es.php

apps/files_encryption/l10n/eu.php