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/APIchunk15.html b/doc/APIchunk15.html
index 3867ad2..3888a87 100644
--- a/doc/APIchunk15.html
+++ b/doc/APIchunk15.html
@@ -292,6 +292,8 @@
 <a href="html/libxml-nanohttp.html#xmlNanoHTTPInit">xmlNanoHTTPInit</a><br />
 <a href="html/libxml-nanohttp.html#xmlNanoHTTPScanProxy">xmlNanoHTTPScanProxy</a><br />
 <a href="html/libxml-xmlerror.html#xmlParserPrintFileInfo">xmlParserPrintFileInfo</a><br />
+<a href="html/libxml-xmlregexp.html#xmlRegExecErrInfo">xmlRegExecErrInfo</a><br />
+<a href="html/libxml-xmlregexp.html#xmlRegExecNextValues">xmlRegExecNextValues</a><br />
 <a href="html/libxml-relaxng.html#xmlRelaxNGGetValidErrors">xmlRelaxNGGetValidErrors</a><br />
 <a href="html/libxml-relaxng.html#xmlRelaxNGSetValidErrors">xmlRelaxNGSetValidErrors</a><br />
 <a href="html/libxml-relaxng.html#xmlRelaxParserSetFlag">xmlRelaxParserSetFlag</a><br />