change start page to www.mozillazine.org. a=leaf

work around for bug #7417

xpfe/browser/src/navigator.xul

@@ -294,7 +294,7 @@
   <broadcaster id="Browser:Status"/>
   <broadcaster id="Browser:Security" secure="false"/>
   <broadcaster id="Browser:Throbber" busy="false"/>
-  <broadcaster id="args" value="http://www.browserwatch.com"/>
+  <broadcaster id="args" value="http://www.mozillazine.org"/>
 
   <!-- Interim hack to transition from nsIXULWindowCallbacks/ShowWindowWithArgs -->
   <broadcaster id="dialog.start" ready="false"/>