o use the new maven:property tag in order to determine the value of

maven.xdoc.version so that we don't need to refer to the pom within
  the plugin.properties.


git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@114554 13f79535-47bb-0310-9956-ffa450edef68

xdoc/src/plugin-resources/site.jsl

@@ -127,7 +127,7 @@
           <table border="0" cellspacing="0" cellpadding="4" width="100%">
             <tr>
               <j:if test="${date == 'left'}">
-                <j:set var="version" value="${maven.xdoc.version}"/>
+                <maven:property var="version" name="maven.xdoc.version" defaultValue="${pom.currentVersion}"/>
                 <td>Last published: ${build.date}
                   <j:if test="${!empty(version)}">| Doc for ${version}</j:if>
                 </td>