Improved the way file:// URI-s are used in the final graph for pyRdfa. Although this change does not seem to affect the usage within RDFLib, it is important for the separate RDFLib/pyRdfa package and it is better to have the sources synchronised...
Merge branch 'master' of https://github.com/RDFLib/rdflib
Improved the way errors are handled. What is defined strictly as an Error in RDFa (which is, essentially, a parsing error in the XML or HTML5 parsing) raises an exception right away.