[tx-robot] updated from transifex

apps/files/l10n/el.php

apps/files/l10n/es.php

apps/files/l10n/es_AR.php

apps/files/l10n/oc.php

apps/files_sharing/l10n/el.php

apps/files_versions/l10n/el.php

apps/files_versions/l10n/zh_CN.php

apps/user_ldap/l10n/el.php

core/l10n/cs_CZ.php

core/l10n/da.php

core/l10n/de.php

core/l10n/el.php

core/l10n/es.php

core/l10n/es_AR.php

core/l10n/eu.php

core/l10n/fi_FI.php

core/l10n/fr.php

core/l10n/it.php

core/l10n/ja_JP.php

core/l10n/nl.php