Merge branch 'master' into close-session-faster-master

3rdparty

apps/files/ajax/upgrade.php

apps/files/index.php

apps/files/js/upgrade.js

apps/files/l10n/ca.php

apps/files/l10n/cs_CZ.php

apps/files/templates/upgrade.php

apps/files_encryption/l10n/ar.php

apps/files_encryption/l10n/ca.php

apps/files_external/3rdparty/smb4php/smb.php

apps/files_external/l10n/ca.php

apps/files_external/l10n/cs_CZ.php

apps/files_external/lib/config.php

apps/files_external/tests/mountconfig.php

apps/files_sharing/l10n/ca.php

apps/files_sharing/l10n/cs_CZ.php

apps/user_ldap/l10n/ca.php

core/ajax/update.php

core/command/upgrade.php

core/css/apps.css