[tx-robot] updated from transifex

apps/files/l10n/el.php

apps/files_encryption/l10n/ru_RU.php

apps/files_external/l10n/ru_RU.php

apps/files_sharing/l10n/ru_RU.php

apps/files_versions/l10n/ru_RU.php

apps/user_ldap/l10n/zh_CN.php

l10n/cs_CZ/settings.po

l10n/de/settings.po

l10n/el/files.po

l10n/el/lib.po

l10n/el/settings.po

l10n/it/settings.po

l10n/nl/settings.po

l10n/ru_RU/files_encryption.po

l10n/ru_RU/files_external.po

l10n/ru_RU/files_sharing.po

l10n/ru_RU/files_versions.po

l10n/ru_RU/lib.po

l10n/sv/settings.po

l10n/templates/core.pot