Prefer data-* attrib options over initialization options

[landy2005]

When initialized with any custom options, ie:

          $("[data-toggle='confirm']").confirmation({
            rootSelector: '[data-toggle=confirm]',
            btnOkIcon: 'icon-ok',
            btnOkClass: 'btn btn-sm btn-primary',
            btnCancelIcon: 'icon-remove',
            btnCancelClass: 'btn btn-sm btn-danger',
          });

than not possible override this options in separate tags by data attribs, ie (different data-btn-cancel-class):

<button id="submit" type="submit" data-toggle="confirm" data-btn-cancel-class="btn btn-xs btn-primary" data-title="Confirmation" data-singleton="true" data-popout="true" data-placement="left" data-content="Ignore until ok?" data-original-title="" title=""><i class="icon-ok-sign text-muted" style="margin-right: 0px;"></i></button>

[mistic100]

It is the default Bootstrap behavior for all options but title and content
example for the trigger option Popover https://jsfiddle.net/7k4sum2r/

but it would make sense for 'btn*' options

[mistic100]

config parsing is here in Bootstrap https://github.com/twbs/bootstrap/blob/v4.6.0/js/src/tooltip.js#L660-L664