adapt checkboxListGroup and radioButtonListGroup to bootstrap 3.2

until then you have to use following syntax
```
echo $form->checkboxListGroup($model, 'checkbox',array(
	'widgetOptions'=> array(
		'data'=>CHtml::listData(Checkbox::model()->findAll(),'id','name'),
		'htmlOptions'=>array(
			'template'=>'<div class="checkbox">{beginLabel}{input}{labelTitle}{endLabel}</div>',
			'labelOptions'=>array('class'=>''),
		),
	),
));
```