Bump org.apache.commons:commons-parent from 78 to 79

The changes report is generated with Doxia 2 as changes.html instead of
changes-report.html

src/site/xdoc/index.xml

@@ -71,7 +71,7 @@ download the files.
     <subsection name="Digester 3.2 (December 2011)">
       <p>The Digester 3.2 release is a maintenance release that adds the most innovating feature ever, providing the
       objects <a href="./guide/constructor.html">Constructor</a> feature.</p>
-      <p>Take a look at Digester 3.2 release <a href="./changes-report.html#a3.2">changes list</a> for more details.</p>
+      <p>Take a look at Digester 3.2 release <a href="./changes.html#a3.2">changes list</a> for more details.</p>
       <p>Digester 3.2 <b>requires a minimum of JDK 1.5</b>.</p>
       <p>The recommended dependency set for Digester 3.2 is:</p>
       <table>