title: The field must be a number. How to change this message to another language?
body: <p>How can I change that messages for all <code>int</code> fields so that instead of saying:</p>
  
  <p><code>The field must be a number</code> in English, it shows:</p>
  
  <p><code>El campo tiene que ser numerico</code> in Spanish.</p>
  
  <p>Is there are a way?</p>