Updating about file to latest release date

calendar/resources/content/about.html

@@ -79,7 +79,7 @@ h1 {
 
 <td id="mozver">
 <h1>
-<a id="mozlink" href="http://www.mozilla.org/projects/calendar/" target="_new">Mozilla Calendar 2003092614-cal</a>
+<a id="mozlink" href="http://www.mozilla.org/projects/calendar/" target="_new">Mozilla Calendar 20040109-cal</a>
 </h1>
 <script type="application/x-javascript">
   // using try..catch to handle empty useragents and other cases where the regex fails to apply