Add changes to revlist for detached HEAD to the change log

Closes #189

Author: rowanj

updates/GitX-dev.html

@@ -18,6 +18,7 @@ <h2>Changes since 0.15.1899</h2>
 <li>Merge <a href="https://github.com/rowanj/gitx/pull/280">pull request #280</a> (<a href="https://github.com/nanoant">nanoant</a>): New sidebar icons.</li>
 <li>Merge <a href="https://github.com/rowanj/gitx/pull/333">pull request #333</a> (<a href="https://github.com/muhqu">muhqu</a>): Another fix for <a href="https://github.com/rowanj/gitx/issues/310">#310</a> - diff highlighter breaks on some strings.</li>
 <li>Merge <a href="https://github.com/rowanj/gitx/pull/295">pull request #295</a> (<a href="https://github.com/tiennou">tiennou</a>): Fix crash when cancelling the new repository dialog. (<a href="https://github.com/rowanj/gitx/issues/220">#220</a>, <a href="https://github.com/rowanj/gitx/issues/255">#255</a>, <a href="https://github.com/rowanj/gitx/issues/275">#275</a>) Also thanks to (<a href="https://github.com/jdelStrother">jdelStrother</a>) and (<a href="https://github.com/ksuther">ksuther</a>) for their fixes.</li>
+<li>Always show <em>HEAD</em> commit in the all-branches and local history views.</li>
 </ul>
 
 <h2>Changes since 0.15.1884</h2>