Merge branch 'master' into user-no-change-displayname

3rdparty

apps/files/ajax/newfile.php

apps/files/js/file-upload.js

apps/files_encryption/lib/proxy.php

apps/files_encryption/lib/util.php

apps/files_trashbin/l10n/ru.php

core/l10n/fr.php

db_structure.xml

issue_template.md

l10n/ach/files.po

l10n/ady/files.po

l10n/af/files.po

l10n/af_ZA/files.po

l10n/ar/files.po

l10n/az/files.po

l10n/be/files.po

l10n/bg_BG/files.po

l10n/bn_BD/files.po

l10n/bs/files.po

l10n/ca/files.po