I just tried asciidoctor-1.5.0.preview.2
Well, sadly I realized that the callout-icons are still rendered as "(1), (2)" and that admonition blocks don't have their icons (see also [1] for testing example and [2])
Perhaps something misssing?
--
Wilhelm
[1]
http://discuss.asciidoctor.org/callouts-not-working-with-deck-js-backend-td1408.html[2]
http://discuss.asciidoctor.org/Admonition-blocks-not-working-with-deckjs-backend-td1423.html