Modify blockquote element definition to allow citations

As a result of recent discussion and review of  historical dicussions

and intend to make some changes to the definition of blockquote in the
HTML 5.1 editors draft, for review and feedback.

I have opened a bug to track and provide an input point

https://www.w3.org/Bugs/Public/show_bug.cgi?id=22996
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Regards

SteveF
HTML 5.1 <http://www.w3.org/html/wg/drafts/html/master/>