preparing release 2.4.27 updated and rebuilt the docs try to make sure the

* configure.in: preparing release 2.4.27
* doc/* : updated and rebuilt the docs
* doc/Makefile.am libxml.spec.in: try to make sure the tutorial
  and all the docs are actually packaged and in the final RPMs
* parser.c parserInternals.c include/libxml/parser.h: restore
  xmllint --recover feature.
Daniel
diff --git a/doc/APIchunk1.html b/doc/APIchunk1.html
index c8d1149..976dbf4 100644
--- a/doc/APIchunk1.html
+++ b/doc/APIchunk1.html
@@ -63,13 +63,18 @@
 </table>
 <table width="100%" border="0" cellspacing="1" cellpadding="3">
 <tr><td colspan="1" bgcolor="#eecfa1" align="center"><center><b>API Indexes</b></center></td></tr>
-<tr><td bgcolor="#fffacd"><ul>
+<tr><td bgcolor="#fffacd">
+<form action="search.php" enctype="application/x-www-form-urlencoded" method="GET">
+<input name="query" type="TEXT" size="20" value=""><input name="submit" type="submit" value="Search ...">
+</form>
+<ul>
 <li><a href="APIchunk0.html">Alphabetic</a></li>
 <li><a href="APIconstructors.html">Constructors</a></li>
 <li><a href="APIfunctions.html">Functions/Types</a></li>
 <li><a href="APIfiles.html">Modules</a></li>
 <li><a href="APIsymbols.html">Symbols</a></li>
-</ul></td></tr>
+</ul>
+</td></tr>
 </table>
 <table width="100%" border="0" cellspacing="1" cellpadding="3">
 <tr><td colspan="1" bgcolor="#eecfa1" align="center"><center><b>Related links</b></center></td></tr>
@@ -206,6 +211,7 @@
 <a href="html/libxml-parserinternals.html#XMLHANDLEENTITY">xmlHandleEntity</a>
 <a href="html/libxml-valid.html#XMLVALIDATEATTRIBUTEDECL">xmlValidateAttributeDecl</a>
 <a href="html/libxml-valid.html#XMLVALIDATEONEATTRIBUTE">xmlValidateOneAttribute</a>
+<a href="html/libxml-valid.html#XMLVALIDATEONENAMESPACE">xmlValidateOneNamespace</a>
 </dd>
 <dt>Deletes</dt>
 <dd>
@@ -484,6 +490,7 @@
 <a href="html/libxml-tree.html#XMLNODEGETBASE">xmlNodeGetBase</a>
 <a href="html/libxml-tree.html#XMLNODEGETCONTENT">xmlNodeGetContent</a>
 <a href="html/libxml-valid.html#XMLVALIDATEONEATTRIBUTE">xmlValidateOneAttribute</a>
+<a href="html/libxml-valid.html#XMLVALIDATEONENAMESPACE">xmlValidateOneNamespace</a>
 </dd>
 <dt>EntityValue</dt>
 <dd>