fixed a weird error where validity context whould not show up if warnings

* valid.c: fixed a weird error where validity context whould not
  show up if warnings were disabled pointed out by Bob Stayton
* xmlIO.c doc/generator.py: cleanup and fix to regenerate the docs
* doc//* testapi.c: rebuilt the docs
Daniel
diff --git a/doc/APIchunk23.html b/doc/APIchunk23.html
index 4bfe14f..c635968 100644
--- a/doc/APIchunk23.html
+++ b/doc/APIchunk23.html
@@ -518,6 +518,7 @@
 <a href="html/libxml-nanohttp.html#xmlNanoHTTPContentLength">xmlNanoHTTPContentLength</a><br />
 </dd><dt>responsible</dt><dd><a href="html/libxml-c14n.html#xmlC14NDocDumpMemory">xmlC14NDocDumpMemory</a><br />
 <a href="html/libxml-uri.html#xmlCanonicPath">xmlCanonicPath</a><br />
+<a href="html/libxml-uri.html#xmlPathToURI">xmlPathToURI</a><br />
 </dd><dt>restored</dt><dd><a href="html/libxml-xmlreader.html#xmlTextReaderSetErrorHandler">xmlTextReaderSetErrorHandler</a><br />
 <a href="html/libxml-xmlreader.html#xmlTextReaderSetStructuredErrorHandler">xmlTextReaderSetStructuredErrorHandler</a><br />
 </dd><dt>restrict</dt><dd><a href="html/libxml-parserInternals.html#xmlParseExternalID">xmlParseExternalID</a><br />