title: jquery validate minlength rule is not working
body: <p>I have a form with a password field. The password has to be at least 8 characters long.</p>
  
  <pre><code>&lt;form action="/account/register" method="post" id="form-register"&gt;
  &lt;div class="input-row"&gt;
      &lt;input name="data[User][password]" type="password" id="FUserPassword" class="required" placeholder="Password"&gt;
  &lt;/div&gt;
  
  &lt;/form&gt;
  
  $("#form-register").validate({
          rules: {
              FUserPassword : {
                  minlength: 8
              }
          }
      });
  </code></pre>
  
  <p>It applies the "required" rule, but it just ignores the "minlength" rule.</p>
  
  <p>What am I doing wrong? I'm using the same code (the JS part) on other pages and it works as expected.</p>