[tx-robot] updated from transifex

apps/files/l10n/ko.php

apps/files_encryption/l10n/ko.php

apps/files_trashbin/l10n/ko.php

apps/files_versions/l10n/ko.php

apps/user_ldap/l10n/el.php

apps/user_ldap/l10n/ko.php

l10n/el/files.po

l10n/el/user_ldap.po

l10n/ko/core.po

l10n/ko/files.po

l10n/ko/files_encryption.po

l10n/ko/files_trashbin.po

l10n/ko/files_versions.po

l10n/ko/settings.po

l10n/ko/user_ldap.po

l10n/templates/core.pot

l10n/templates/files.pot

l10n/templates/files_encryption.pot

l10n/templates/files_external.pot

l10n/templates/files_sharing.pot