Simplify the format a bit. Use less <interleave> in the RNG so that error reports become understandable. Fixes #491. This was SVN commit r7478.
Add RelaxNG schemas for all current components. Add -dumpSchema command-line option to dump the combined entity schema. Add a Perl script to validate entity templates against the schema. See #413. This was SVN commit r7452.
This was SVN commit r7322.