fn/fnref design

http://markmail.org/message/67sn3oxx4ht644de
This is compatible with DITA 1.3 (the fnref specialization is a convenience specialization that adds no new behavior) and also with HTML5 recommended treatment for footnotes as documented here:
https://www.w3.org/TR/html5/common-idioms.html
Michael Priestley, Senior Technical Staff Member (STSM)

Enterprise Content Technology Strategist