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/news.html b/doc/news.html
index 1a14cd8..d669244 100644
--- a/doc/news.html
+++ b/doc/news.html
@@ -94,6 +94,12 @@
 <li>(seeems working but delayed from release) parsing/import of Docbook
     SGML docs</li>
 </ul>
+<h3>2.4.16: Feb 20 2002</h3>
+<ul>
+<li>a lot of bug fixes, most of them were triggered by the XML Testsuite
+    from OASIS and W3C. Compliance has been significantly improved.</li>
+<li>a couple of portability fixes too.</li>
+</ul>
 <h3>2.4.15: Feb 11 2002</h3>
 <ul>
 <li>Fixed the Makefiles, especially the python module ones</li>