[Reveal] Feature Request: Make appendTo("body") configurable

[phifa]

For ajax loading reasons I need all of me content inside a specific div. Problem is, the reveal plugins always gets attached to the body. When I change the code in line 88 in founation.reveal.js like this it works like a charm:

  _makeOverlay(id) {
    var $overlay = $('<div></div>')
                    .addClass('reveal-overlay')
                    .appendTo('#configurableDiv');
    return $overlay;
  }

[Owlbertz]

That would be a nice enhancement for v6.3. You think you could create a PR for this?

[phifa]

like so @Owlbertz #9050 ?

[phifa]

I did it again, this time with the newest version -.-

#9094 @Owlbertz

[kball]

Fixed with #9094