classic skin polish + remove a dump

xpfe/global/resources/content/radioBindings.xml

@@ -14,7 +14,6 @@
     </interface>
     <handlers>
       <handler type="command">
-        dump("*** this.checked = " + this.checked + "\n");
         if( !this.checked ) this.checked = true;
       </handler>
     </handlers>

xpfe/global/resources/content/xul.css

@@ -298,10 +298,6 @@ treeitem[container="true"] > treerow > .treecell-indent {
   behavior: url("chrome://global/content/treeBindings.xml#treecell-align-right");
 }
 
-.tree-header-image {
-  list-style-image: inherit;
-}
-
 treeitem > treechildren {
   display: none;
 }