Use the new Maven central repository url

src/site/xdoc/downloads.xml

@@ -40,7 +40,7 @@
                 <p>
                     The Acegi Security JARs are also available via the
                     <a
-                        href="http://www.ibiblio.org/maven2/org/acegisecurity">
+                        href="http://repo1.maven.org/maven2/org/acegisecurity">
                         iBiblio Maven Repository
                     </a>
                     .