VALIDATOR-273: EmailValidator does not support mailboxes at TLDs. Thanks to Chris Lee

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/validator/trunk@1608584 13f79535-47bb-0310-9956-ffa450edef68
VALIDATOR-266: DomainValidator uses an O(n) method where an O(1) would be more appropriate. Thanks to Bruce Collie

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/validator/trunk@1608599 13f79535-47bb-0310-9956-ffa450edef68