code: public void addRefinementMapping(char token, String name) {
      Navigation mapping = new Navigation();
      setValues(mapping, name, String.valueOf(token));
      addMapping(mapping);
    }
docs: <code>
  Set up a mapping for a refinement.
  Note: you cannot use vowels for mapping tokens to prevent dictionary word creation.
  The order in which this method is called determines where in the URL the refinements will show up.
  </code>
  
  @param token
  The single letter to represent this refinement in the lookup.
  @param name
  The name of the navigation that will be mapped using this
  token.