Update Boost.Python release notes on homepage.

[SVN r37525]

index.htm

@@ -504,6 +504,12 @@
                               functions built with the parameter library;
                               keyword names are automatically known to
                               docsstrings.</li>
+
+                              <li>Enhancements to the API for better embedding support
+                              (<code>boost::python::import()</code>,
+                              <code>boost::python::exec()</code>,
+                              and <code>boost::python::exec_file()</code>).</li>
+                              
                             </ul>
                           </li>