Make it more configurable

[similar75]

Please, make selectors in template configurable, especially BUTTONS , in case if we not like them in "btn-group" when template option is used in configuration: e.g.

$('[data-toggle=confirmation]').confirmation({
  rootSelector: '[data-toggle=confirmation]',
  template:  $('#myTemplateContainingDiv').html()'
  // other options
});

and in HTML:

<div class="d-none" id="myTemplateContainingDiv">
	<div class="popover confirmation">
		<div class="arrow"></div>
		<h3 class="popover-header"></h3>
		<div class="popover-body">
			<p class="confirmation-content"></p>
			<div class="confirmation-buttons text-center">
				<div class="my-custom-btn-div-class"></div>
			</div>
		</div>
	</div>
</div>

I modified it in code here, replacing '.btn-group' with .'my-custom-btn-div-class', but will be very useful if is configurable through options. Can be only 'BUTTONS: '.confirmation-buttons' and we can remove in this case '<div class="my-custom-btn-div-class"></div>' from html. Will be much more flexible if we can control this setting.

const Selector = {
  TITLE  : '.popover-header',
  CONTENT: '.confirmation-content',
  BUTTONS: '.confirmation-buttons .btn-group',
};

Thank you. (Great plugin!)