code: function(model, stopListening) {
        if (this.model && stopListening) {
          this.stopListening(this.model);
        }
        this.model = model;
        this.listenTo(this.model, 'validated:valid', this.valid);
        this.listenTo(this.model, 'validated:invalid', this.invalid);
      }
docs: Resets the form model with the passed in model. Stops listening to current form model
  and sets up listeners on the new one.
  @method resetModelListeners
  @param model {Torso.FormModel} the new form model
  @param [stopListening=false] {Boolean} if true, it will stop listening to the previous form model