ACTION-607 add change log to RDF-OWL compatibility

I added a change log to the RDF and OWL compatibility document [1].  I
believe this completes action 607.

Best, Jos

[1]
http://www.w3.org/2005/rules/wiki/SWC#Appendix:_Change_log_.28Informative.29
-- 
Jos de Bruijn            debruijn@inf.unibz.it
+390471016224         http://www.debruijn.net/
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