preparing 2.4.17 release updated and rebuilt the docs fixed a comment

* configure.in: preparing 2.4.17 release
* doc/*: updated and rebuilt the docs
* xpath.c: fixed a comment
* python/libxml.c: fixed a possible reentrancy problem
Daniel
diff --git a/doc/catalog.html b/doc/catalog.html
index 60fbec7..87d4f31 100644
--- a/doc/catalog.html
+++ b/doc/catalog.html
@@ -134,9 +134,8 @@
     operation of libxml.</li>
 <li>
 <a href="http://www.oasis-open.org/committees/entity/spec.html">XML
-    Catalogs</a>
-     is far more flexible, more recent, uses an XML syntax and should scale
-    quite better. This is the default option of libxml.</li>
+    Catalogs</a> is far more flexible, more recent, uses an XML syntax and
+    should scale quite better. This is the default option of libxml.</li>
 </ul>
 <p>
 <h3><a name="Simple">Using catalog</a></h3>