fix message keys and few typos
complete it translation
change comments notation to fqcn
fix Zend\Validator\File\Wordcount message key and typo
Merge branch 'hotfix/4171'

Close #4171
Merge pull request #4183 from stefanotorresi/hotfix/2536

Update Zend_Validate.php resource
Merge branch 'hotfix/4183' into develop

Forward port #4183