Add report-aggregate to m2e/lifecycle-mapping-metadata.xml (#427)

diff --git a/org.jacoco.doc/docroot/doc/changes.html b/org.jacoco.doc/docroot/doc/changes.html
index 58248f2..fdc0d8c 100644
--- a/org.jacoco.doc/docroot/doc/changes.html
+++ b/org.jacoco.doc/docroot/doc/changes.html
@@ -27,6 +27,12 @@
       (GitHub <a href="https://github.com/jacoco/jacoco/issues/322">#322</a>).</li>
 </ul>
 
+<h3>Fixed Bugs</h3>
+<ul>
+  <li>Add Maven goal <code>report-aggregate</code> to lifecycle-mapping-metadata.xml
+      (GitHub <a href="https://github.com/jacoco/jacoco/issues/427">#427</a>).</li>
+</ul>
+
 <h2>Release 0.7.7 (2016/06/06)</h2>
 
 <h3>New Features</h3>