Sorry, wrong links for the CC doco : http://www.apache.org/legal/resolved#cc-sa
" Unmodified media under the Creative Commons Attribution-Share Alike 2.5 <http://creativecommons.org/licenses/by-sa/2.5/> and Creative Commons Attribution-Share Alike 3.0 <http://creativecommons.org/licenses/by-sa/3.0/> licenses may be included in Apache products, subject to the licenses attribution clauses which may require LICENSE/NOTICE/README changes. For any other type of CC-SA licensed work, please contact the Legal PMC."
