Adds the changes in the file Installation/changes.html.

Installation/changes.html

@@ -227,6 +227,9 @@ and <code>src/</code> directories).
           (re)compute circumcenters and sliver criterion values only when
           needed.
     </li>
+    <li>Add a new constructor for the class Labeled_mesh_domain_3 which takes an Iso_cuboid_3.
+	Add a new labeling function wrapper for meshing multi-domain.
+    </li>
   </ul>
 
   <h3>Triangulated Surface Mesh Simplification</h3>