Updated RDFa processing so that RDFa 1.1 is generated
by default.    Ensured that the output is consistent
with microformats too.  Incorporated the w3p vocabulary
for w3c process stages.  Added tests about what is
generated and what is not depending on doRDFa settings.
Updated documentation.  Expanded generation of output
documents to include XHTML1 and XHTML5.  XHTML1 generation
remains valid by removing aria stuff as well as HTML5 stuff.
Rolled up modified files.

Now supports RDFa as a default.

Can be disabled with doRDFa = false.

Documentation updated.
fixed merge conflict
Adjusted some tests to disable RDFa
Merge remote branch 'upstream/develop' into develop
Fixed some issues Tobie identified.
integrated rdfa tests into phantom-runner
Merge pull request #243 from halindrome/develop

Support for RDFa