preparing 2.4.16 updated and rebuilt the docs, rebuilt the API and web

* configure.in include/libxml/xmlwin32version.h: preparing 2.4.16
* doc/* python/libxml2class.txt: updated and rebuilt the docs,
  rebuilt the API and web site
* xpath.c: fixed #71978 portability bugs
Daniel
diff --git a/doc/APIchunk3.html b/doc/APIchunk3.html
index 5ea19c1..760bff3 100644
--- a/doc/APIchunk3.html
+++ b/doc/APIchunk3.html
@@ -395,6 +395,7 @@
 <dt>Note:</dt>
 <dd>
 <a href="html/libxml-encoding.html#XMLCHARENCODINGOUTPUTFUNC">xmlCharEncodingOutputFunc</a>
+<a href="html/libxml-entities.html#XMLGETDTDENTITY">xmlGetDtdEntity</a>
 <a href="html/libxml-parserinternals.html#XMLPARSEATTVALUE">xmlParseAttValue</a>
 <a href="html/libxml-encoding.html#XMLUTF8STRSUB">xmlUTF8Strsub</a>
 </dd>