Bug 157067: Inconsistency in appearance of "Move Up" and "Move Down" buttons.

This patch fixes the Customize Sidebar dialog I overlooked.
r=neil, sr=alecf

xpfe/components/sidebar/resources/customize.xul

@@ -150,11 +150,11 @@
     <!-- The 'reorder' buttons -->
     <vbox id="reorder">
       <spacer flex="1"/>
-      <button oncommand="MoveUp();" id="up" disabled="true"
-              label="&sidebar.customize.up.label;"
+      <button oncommand="MoveUp();" id="up" class="up"
+              disabled="true" label="&sidebar.customize.up.label;"
               accesskey="&sidebar.customize.up.accesskey;"/>
-      <button oncommand="MoveDown();" id="down" disabled="true"
-              label="&sidebar.customize.down.label;"
+      <button oncommand="MoveDown();" id="down" class="down"
+              disabled="true" label="&sidebar.customize.down.label;"
               accesskey="&sidebar.customize.down.accesskey;"/>
       <spacer flex="1"/>
     </vbox> 

xpfe/components/sidebar/resources/locale/en-US/customize.dtd

@@ -1,62 +0,0 @@
-<!-- ***** BEGIN LICENSE BLOCK *****
-   - Version: MPL 1.1/GPL 2.0/LGPL 2.1
-   -
-   - The contents of this file are subject to the Mozilla Public License Version
-   - 1.1 (the "License"); you may not use this file except in compliance with
-   - the License. You may obtain a copy of the License at
-   - http://www.mozilla.org/MPL/
-   -
-   - Software distributed under the License is distributed on an "AS IS" basis,
-   - WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
-   - for the specific language governing rights and limitations under the
-   - License.
-   -
-   - The Original Code is Mozilla Communicator.
-   -
-   - The Initial Developer of the Original Code is
-   - Netscape Communications Corp.
-   - Portions created by the Initial Developer are Copyright (C) 1999
-   - the Initial Developer. All Rights Reserved.
-   -
-   - Contributor(s):
-   -   Stephen Lamm <slamm@netscape.com>
-   -
-   - Alternatively, the contents of this file may be used under the terms of
-   - either of the GNU General Public License Version 2 or later (the "GPL"),
-   - or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
-   - in which case the provisions of the GPL or the LGPL are applicable instead
-   - of those above. If you wish to allow use of your version of this file only
-   - under the terms of either the GPL or the LGPL, and not to allow others to
-   - use your version of this file under the terms of the MPL, indicate your
-   - decision by deleting the provisions above and replace them with the notice
-   - and other provisions required by the GPL or the LGPL. If you do not delete
-   - the provisions above, a recipient may use your version of this file under
-   - the terms of any one of the MPL, the GPL or the LGPL.
-   -
-   - ***** END LICENSE BLOCK ***** -->
-
-<!-- extracted from ./customize.xul -->
-
-<!-- LOCALIZATION NOTE  sidebar.customize.title.label: Do NOT localize the term "Sidebar"  -->
-<!ENTITY sidebar.customize.title.label          "Customize &sidebarName;">
-<!-- LOCALIZATION NOTE  sidebar.customize.current.label: Do NOT localize the term "Sidebar"  -->
-<!ENTITY sidebar.customize.current.label        "Tabs in &sidebarName;:">
-<!ENTITY sidebar.customize.current.accesskey     "t">
-<!ENTITY sidebar.customize.reorder.label        "Reorder">
-<!ENTITY sidebar.customize.customize.label      "Customize Tab...">
-<!ENTITY sidebar.customize.customize.accesskey  "c">
-<!ENTITY sidebar.customize.remove.label         "Remove">
-<!ENTITY sidebar.customize.remove.accesskey     "r">
-<!-- LOCALIZATION NOTE  sidebar.customize.additional.label: Do NOT localize the term "Sidebar"  -->
-<!ENTITY sidebar.customize.additional.label     "Available Tabs:">
-<!ENTITY sidebar.customize.additional.accesskey  "v">
-<!ENTITY sidebar.customize.add.label            "Add">
-<!ENTITY sidebar.customize.add.accesskey         "a">
-<!ENTITY sidebar.customize.preview.label        "Preview...">
-<!ENTITY sidebar.customize.preview.accesskey    "p">
-<!ENTITY sidebar.customize.up.label             "Up">
-<!ENTITY sidebar.customize.up.accesskey         "u">
-<!ENTITY sidebar.customize.down.label           "Down">
-<!ENTITY sidebar.customize.down.accesskey       "d">
-<!ENTITY sidebar.more.label                     "Find more tabs...">
-<!ENTITY sidebar.more.accesskey                 "f">