114258 - pref panel header binding, dialogoverlay.css shouldn't have to be included in each panel. r=ben sr=hewitt

114268 - unnecessarily setting localname attribute on all pref-based elements when loading pref panels. r=ben sr=hewitt

suite/common/pref/pref-locales.xul

@@ -15,9 +15,6 @@
   -->
 
 <?xml-stylesheet href="chrome://communicator/skin/" type="text/css"?>
-
-<?xul-overlay href="chrome://global/content/dialogOverlay.xul"?>
-<?xul-overlay href="chrome://global/content/globalOverlay.xul"?>
 <?xul-overlay href="chrome://communicator/content/utilityOverlay.xul"?>
 
 <!DOCTYPE window [
@@ -28,7 +25,8 @@
 ]>
 
 <page xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
-      onload="parent.initPanel('chrome://content-packs/content/pref-contentpacks.xul');">
+      onload="parent.initPanel('chrome://content-packs/content/pref-contentpacks.xul');"
+      headertitle="&lHeader;">
 
   <stringbundle id="bundle_contentPack"
                 src="chrome://content-packs/locale/contentpacks.properties"/>