[ANN] Relax NG validation tool Serene 0.5.1 released

This is a one-time post to announce the release of the Serene 0.5.1

The purpose of Serene project is to create an open source validation
engine implementing the JAXP 1.3 Validation Framework API for RELAX NG
that concentrates on good messages and clear handling of ambiguity and
conflicts.

This release adds support for XML Schema datatypes and sports several bug fixes.

For more information, please come to
 http://code.google.com/p/serene/

Thank you,
Radu Cernuta