[tx-robot] updated from transifex

apps/files/l10n/el.php

apps/files/l10n/fr.php

apps/files/l10n/ja.php

apps/files/l10n/ro.php

apps/files_encryption/l10n/fr.php

apps/files_encryption/l10n/ja.php

apps/files_encryption/l10n/pl.php

apps/files_external/l10n/el.php

apps/files_external/l10n/fr.php

apps/files_external/l10n/ja.php

apps/files_sharing/l10n/el.php

apps/files_sharing/l10n/ja.php

apps/files_trashbin/l10n/ja.php

apps/files_versions/l10n/ja.php

apps/user_ldap/l10n/fr.php

apps/user_ldap/l10n/ja.php

apps/user_ldap/l10n/pl.php

apps/user_webdavauth/l10n/ja.php

core/l10n/el.php

core/l10n/fr.php