release of 2.4.20 updated and rebuilt the docs Daniel

* configure.in: release of 2.4.20
* doc/*: updated and rebuilt the docs
Daniel
diff --git a/libxml.spec.in b/libxml.spec.in
index 5a9fa5e..8d13a18 100644
--- a/libxml.spec.in
+++ b/libxml.spec.in
@@ -1,7 +1,7 @@
 Summary: Library providing XML and HTML support
 Name: libxml2
 Version: @VERSION@
-Release: 4
+Release: 1
 License: MIT
 Group: Development/Libraries
 Source: ftp://xmlsoft.org/libxml2-%{version}.tar.gz