Synced pt_BR\Zend_Validate.php with en\Zend_Validate.php
Merge branch 'hotfix/3698'

Close #3698
Merge branch 'syncedresourceslanguagespt_BRZend_Validate.php' of git://github.com/wryck7/zf2 into hotfix/3701
Merge branch 'hotfix/3701' into develop

Forward port #3701