title: Parsley custom error message doesn't work
body: <p>I have the following input field:</p>
  
  <pre><code>&lt;input id="name" name="real_name" type="text" placeholder="ie. Your full name or company name" class="form-control input-lg parsley-validated"
     data-required="true" parsley-error-message="Please insert your name" &gt;
  </code></pre>
  
  <p>However, when I press my submit button, I only get the standard <code>This value is required.</code> message.</p>
  
  <p>Can anyone tell me why?</p>