[tx-robot] updated from transifex

apps/files_external/l10n/de.php

apps/files_external/l10n/sl.php

apps/user_ldap/l10n/cs_CZ.php

apps/user_ldap/l10n/de.php

apps/user_ldap/l10n/it.php

apps/user_ldap/l10n/ja_JP.php

apps/user_ldap/l10n/ru.php

apps/user_ldap/l10n/sl.php

core/l10n/sl.php

l10n/cs_CZ/user_ldap.po

l10n/de/files_external.po

l10n/de/user_ldap.po

l10n/it/user_ldap.po

l10n/ja_JP/user_ldap.po

l10n/ru/user_ldap.po

l10n/sl/core.po

l10n/sl/files_external.po

l10n/sl/user_ldap.po

l10n/templates/core.pot

l10n/templates/files.pot