Bug 954518 - The copyright year shouldn't be localizable, r=florian.

im/content/aboutDialog.xul

@@ -47,6 +47,7 @@
 %brandDTD;
 <!ENTITY % aboutDialogDTD SYSTEM "chrome://instantbird/locale/aboutDialog.dtd" >
 %aboutDialogDTD;
+<!ENTITY copyrightYear "2011">
 #ifdef XP_MACOSX
  <!ENTITY % instantbirdDTD SYSTEM "chrome://instantbird/locale/instantbird.dtd">
  %instantbirdDTD;
@@ -141,7 +142,7 @@
           <textbox id="libpurpleVersionField" readonly="true" class="plain"
                    tabindex="4" value="&libpurpleVersion; "/>
         </vbox>
-        <description id="copyright" flex="1">&copyrightText;</description>
+        <description id="copyright" flex="1">&copyrightText2;</description>
         <separator/>
         <textbox id="userAgentField" readonly="true" class="plain"
                  tabindex="5" multiline="true"/>

im/locales/en-US/chrome/instantbird/aboutDialog.dtd

@@ -6,4 +6,5 @@
 <!ENTITY aboutVersion           "version">
 <!ENTITY geckoVersion           "Gecko">
 <!ENTITY libpurpleVersion       "libpurple">
-<!ENTITY copyrightText          "&#169;2007-2011 Contributors. This program is free software; you can redistribute it and/or modify it under the terms of the GNU GPL license version 2.0 or later.">
+<!-- Use the &copyrightYear; entity to place the current year. -->
+<!ENTITY copyrightText2         "&#169;2007-&copyrightYear; Contributors. This program is free software; you can redistribute it and/or modify it under the terms of the GNU GPL license version 2.0 or later.">