Lightweight DITA SC

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 mpriestl@ca.ibm.com