title: Change default message of f:validateRegex
body: <p><br/><br/>
  I have input for email:<br/><br/></p>
  
  <pre><code>&lt;h:inputText value="#{registrationBean.email}" id="email" label="#{msgs.email}"&gt;
                          &lt;f:validateLength minimum="5" maximum="50" /&gt;
                          &lt;f:validateRegex
                                  pattern="^[_A-Za-z0-9-\+]+(\.[_A-Za-z0-9-]+)*@[A-Za-z0-9-]+(\.[A-Za-z0-9]+)*(\.[A-Za-z]{2,})$" /&gt;
                      &lt;/h:inputText&gt;
                      &lt;h:message for="email"/&gt;
  </code></pre>
  
  <p>So, how I can change message, when validateRegex not matched? Now message is:</p>
  
  <pre><code>Regex pattern of '^[_A-Za-z0-9-\+]+(\.[_A-Za-z0-9-]+)*@[A-Za-z0-9-]+(\.[A-Za-z0-9]+)*(\.[A-Za-z]{2,})$' not matched
  </code></pre>
  
  <p>But I want something like „Incorrect e-mail…”<br/>
  Thanks.</p>