code: protected MailtoModel newMailtoModel(final Object[] params)
  	{
  		final MailtoModel model = new MailtoModel(newMailToAddressModel(params),
  			newMailToViewModel(params));
  		return model;
  	}
docs: Factory method to create a new {@link MailtoModel}. This method is invoked in the constructor
  from this class and can be overridden so users can provide their own version of a new
  {@link MailtoModel}.
  
  @param params
  the params
  @return the new {@link MailtoModel}.