[ANN] Relax NG validation tool Serene 0.5.3 released

This is a one-time post to announce the Serene 0.5.3 release.

The purpose of the 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 a clear handling
of ambiguity and conflicts.

For this release Serene has been tested with the RELAX NG test suite.
As a result, several bugs have been fixed and the handling of
conflicts and the reporting of errors have been significantly
improved.

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

Thank you,
Radu Cernuta