Zend_Validate_Hostname doesn't handle IDN for .UA

fixes ZF-12413
related to https://github.com/zendframework/zf1/pull/114
Merge pull request #4597 from siad007/zendValidateHostnameUA

Zend_Validate_Hostname doesn't handle IDN for .UA
Merge branch 'hotfix/4597'

Close #4597