title: lastUpdated is not showing in maven-metadata.xml
body: <p>I have an issue with an artifact's maven-metadata.xml is not showing up.
  Here is the environment i am working on:
  Apache Archiva , Ivy, ant.</p>
  
  <p>Problem: When I am Deploying artifact via the Web UI Form, I am able to see all the attributes in maven-metadata.xml.</p>
  
  <pre><code>&lt;metadata&gt;
    &lt;groupId&gt;twitter evt&lt;/groupId&gt;
    &lt;artifactId&gt;authentication&lt;/artifactId&gt;
    &lt;versioning&gt;
      &lt;latest&gt;1.1&lt;/latest&gt;
      &lt;release&gt;1.1&lt;/release&gt;
        &lt;versions&gt;
         &lt;version&gt;LATEST&lt;/version&gt;
         &lt;version&gt;1.0&lt;/version&gt;
         &lt;version&gt;1.1&lt;/version&gt;
        &lt;/versions&gt;
     &lt;lastUpdated&gt;20090729142510&lt;/lastUpdated&gt;
    &lt;/versioning&gt;
  &lt;/metadata&gt;
  </code></pre>
  
  <p>But when i deploy the artifact through ivy by command prompt (ant publish-latest -Dversion=1.0.3), artifact is updating fine with latest changes but artifact's maven-metadata.xml is missing  attribute with latest time stamp.<p></p>
  
  <pre><code>&lt;metadata&gt;
    &lt;groupId&gt;twitter evt&lt;/groupId&gt;
    &lt;artifactId&gt;twitter_account_management&lt;/artifactId&gt;
     &lt;versioning&gt;
       &lt;latest&gt;1.1.1&lt;/latest&gt;
       &lt;release&gt;1.1.1&lt;/release&gt;
          &lt;versions&gt;
            &lt;version&gt;LATEST&lt;/version&gt;
            &lt;version&gt;1.0&lt;/version&gt;
            &lt;version&gt;1.0.1&lt;/version&gt;
            &lt;version&gt;1.0.2&lt;/version&gt;
            &lt;version&gt;1.0.3&lt;/version&gt;
            &lt;version&gt;1.0.4&lt;/version&gt;
            &lt;version&gt;1.0.5&lt;/version&gt;
            &lt;version&gt;1.1&lt;/version&gt;
            &lt;version&gt;1.1.1&lt;/version&gt;
         &lt;/versions&gt;
     &lt;/versioning&gt;
  &lt;/metadata&gt;
  </code></pre>
  
  <p>Here is my ant publish-latest target:</p>
  
  <pre><code>&lt;target name="publish_latest" depends="_loadantcontrib,dist" &gt;
    &lt;ivy:settings file="${ivy.settings.dir}/ivysettings.xml" /&gt;
    &lt;ivy:resolve file="${ant.dir}/ivy.xml" transitive="false" /&gt;
    &lt;ivy:findrevision organisation="${ivy.organisation}" module="${ivy.module}" revision="latest.integration"/&gt;
    &lt;echo message="looking in: ${basedir}/${build_distdir}/${jar_tcs_libdir}/${component.distfilename}/${component_version}/" /&gt;
    &lt;ivy:publish resolver="ibiblio" artifactspattern="${basedir}/${build_distdir}/${jar_tcs_libdir}/${component.distfilename}/${component_version}/[artifact].[ext]" pubrevision="${version}" overwrite="true" update="true"/&gt;
  &lt;/target&gt;
  </code></pre>
  
  <p>Please help me on this issue, I struck at this point in process of getting the latest artifact. </p>