Update change log

Author: rowanj

updates/GitX-dev.html

@@ -17,6 +17,7 @@ <h2>Changes since 0.15.1949</h2>
 <li>Fix crash when trying to browse for a remote (<a href="https://github.com/rowanj/gitx/issues/255">#255</a>, <a href="https://github.com/rowanj/gitx/pull/370">#370</a>)</li>
 <li>Fix changes to newly added files never showing up in the commit view.</li>
 <li>Merge <a href="https://github.com/rowanj/gitx/pull/367">pull request #367</a> (<a href="https://github.com/Debilski">Debilski</a>): Stylistic typographic changes.</li>
+<li>Make commit searches that include a lot of results exponentially faster.</li>
 </ul>
 
 <h2>Changes since 0.15.1899</h2>