"onNext" with return false does not Prevent Wizard from Continuing

[rfizzle]

Checklist

• [x] I'm using version: v0.4.3
• [x] My browser is: Chrome 56

Description

Returning false via the "onNext" does not prevent the wizard from continuing to the next item.

How can we reproduce this bug?

    var wizard = $("#exampleWizardForm").wizard({
      step: '.steps .step, .pearls .pearl',
      templates: {
        buttons: function buttons() {
          var options = this.options;
          return '<div class="panel-footer"><div class="wizard-buttons"><a class="btn btn-default btn-outline" href="#' + this.id + '" data-wizard="back" role="button">' + options.buttonLabels.back + '</a><a class="btn btn-primary btn-outline pull-xs-right" href="#' + this.id + '" data-wizard="next" role="button">' + options.buttonLabels.next + '</a><a class="btn btn-success btn-outline pull-xs-right" href="#' + this.id + '" data-wizard="finish" role="button">' + options.buttonLabels.finish + '</a></div></div>';
        }
      },
      classes: {
        button: {
          hide: 'hidden-xs-up',
          disabled: 'disabled'
        }
      },
      onNext: function(e) {
        return false;
      }
    });

What did you expect to happen?

The wizard should not have switched to the next section.

What happened instead?

The wizard went to the next section.

[jor3l]

This is a must

[ahmedanwar100]

you may use validator property, perhaps it help