ZMsg it

[i18ncheck] Target file: ZMsg_it.properties
[i18ncheck]   5 Missing - source key not present in target
[i18ncheck]     errorMaintenanceMode
[i18ncheck]     errorModifyConflict
[i18ncheck]     errorTooManyTerms
[i18ncheck]     errorUnableToImport
[i18ncheck]     mailSendAddressFailure
[i18ncheck]   Summary: 31 source, 5 missing, 0 duplicate, 0 obsolete, approx 83% complete