title: Raising custom error message in parsley.js
body: <p>I am asking this question for the second time because I didn't manage to solve the issue the last time. </p>
  
  <p>I have a complex rule according to which I should validate user input. For the purpose of simplicity, let's assume that the input value should be divisible by 5. 
  Consider this <a href="http://jsfiddle.net/RT5aN/465/" rel="nofollow noreferrer">JsFiddle</a></p>
  
  <pre><code>var elem = $('#name').parsley();
  var error_name = 'custom_error';
  elem.removeError(error_name);
  elem.addError(error_name, {message:'Custom error msg'});
  </code></pre>
  
  <p>Why is the reason this code does not work ?</p>