Panel Heading - Centering text

[lloyd966]

First of all thank you for this great and easy to use extension.

I want to center the Panel Heading text. There does not seem to be away to do this using any of the available properties.

Would it be possible to add another prosperity and name it options (ie: public $options=[];) and incorporate it into to line 37

  - echo Html::tag('div', $this->title, ['class'=>'panel-heading']);

to get it to work for now I modified line 37 as follows:

   - echo Html::tag('div', $this->title, ['class'=>'panel-heading text-center']);

I would be great if you were able to set the option when including the widget in my code.

Thank you

Lloyd