regenerated the API description, rebuilt, improved navigation in

* elfgcchack.h testapi.c doc/libxml2-api.xml doc/*: regenerated
  the API description, rebuilt, improved navigation in documentation
  a bit.
Daniel
diff --git a/doc/APIchunk2.html b/doc/APIchunk2.html
index 25da8c4..625c6f2 100644
--- a/doc/APIchunk2.html
+++ b/doc/APIchunk2.html
@@ -392,7 +392,9 @@
 <a href="html/libxml-parserInternals.html#xmlParseEntityDecl">xmlParseEntityDecl</a><br />
 <a href="html/libxml-parserInternals.html#xmlParseExternalID">xmlParseExternalID</a><br />
 <a href="html/libxml-parserInternals.html#xmlParseNotationDecl">xmlParseNotationDecl</a><br />
-</dd><dt>Extract</dt><dd><a href="html/libxml-xmlschemastypes.html#xmlSchemaGetFacetValueAsULong">xmlSchemaGetFacetValueAsULong</a><br />
+</dd><dt>Extract</dt><dd><a href="html/libxml-xmlregexp.html#xmlRegExecErrInfo">xmlRegExecErrInfo</a><br />
+<a href="html/libxml-xmlregexp.html#xmlRegExecNextValues">xmlRegExecNextValues</a><br />
+<a href="html/libxml-xmlschemastypes.html#xmlSchemaGetFacetValueAsULong">xmlSchemaGetFacetValueAsULong</a><br />
 <a href="html/libxml-xmlstring.html#xmlStrsub">xmlStrsub</a><br />
 </dd></dl><h2 align="center"><a href="APIchunk0.html">A-B</a>
 <a href="APIchunk1.html">C-C</a>