zendframework/zf2 — pull request #1921 by froschdesign (2012-07-18 16:53:38+00:00)
Title: [ZF2-401] Add support for RDFa 1.1 doctype

Since 7. June 2012 RDFa 1.1 is now a formal W3C recommendation:
http://www.w3.org/TR/xhtml-rdfa/