Fix for bug 261242: Error: Error in parsing value for property

'vertical-align'.  Declaration dropped. Patch by Chris Thomas (CTho)
<cst@andrew.cmu.edu>. r=me.

webtools/tinderbox3/server/Tinderbox3/InitialValues.pm

@@ -115,7 +115,7 @@ th.status200 a,th.status201 a,th.status202 a,th.status203 a {
 }
 #tree_top {
   text-align: center;
-  vertical-align: center;
+  vertical-align: middle;
   margin-bottom: 1em;
 }
 #tree_top span {