Bump copyright notice's year to 2021

Author: Flowdalic

examples.xsl

@@ -2,7 +2,7 @@
 
 <!--
 
-Copyright (c) 1999 - 2020 XMPP Standards Foundation
+Copyright (c) 1999 - 2021 XMPP Standards Foundation
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

protopage.xsl

@@ -1,6 +1,6 @@
 <!--
 
-Copyright (c) 1999 - 2020 XMPP Standards Foundation
+Copyright (c) 1999 - 2021 XMPP Standards Foundation
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

ref.xsl

@@ -2,7 +2,7 @@
 
 <!--
 
-Copyright (c) 1999 - 2020 XMPP Standards Foundation
+Copyright (c) 1999 - 2021 XMPP Standards Foundation
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

xep-0001.xml

@@ -441,7 +441,7 @@ Experimental ----> Proposed ----> Active
 
 <!--
 
-Copyright (c) 1999 - 2020 XMPP Standards Foundation
+Copyright (c) 1999 - 2021 XMPP Standards Foundation
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

xep-0292.xml

@@ -700,7 +700,7 @@ property-key = element key {
 
 <!--
 
-Copyright (c) 1999 - 2020 XMPP Standards Foundation
+Copyright (c) 1999 - 2021 XMPP Standards Foundation
 
 Permission is hereby granted, free of charge, to any
 person obtaining a copy of this software and

xep.dtd

@@ -2,7 +2,7 @@
 
 <!--
 
-Copyright (c) 1999 - 2020 XMPP Standards Foundation
+Copyright (c) 1999 - 2021 XMPP Standards Foundation
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

xep.ent

@@ -17,7 +17,7 @@
 
 <!--
 
-Copyright (c) 1999 - 2020 XMPP Standards Foundation
+Copyright (c) 1999 - 2021 XMPP Standards Foundation
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

xep.xsd

@@ -2,7 +2,7 @@
 
 <!--
 
-Copyright (c) 1999 - 2020 XMPP Standards Foundation
+Copyright (c) 1999 - 2021 XMPP Standards Foundation
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

xep.xsl

@@ -2,7 +2,7 @@
 
 <!--
 
-Copyright (c) 1999 - 2020 XMPP Standards Foundation
+Copyright (c) 1999 - 2021 XMPP Standards Foundation
 
 Permission is hereby granted, free of charge, to any
 person obtaining a copy of this software and
@@ -259,7 +259,7 @@ content: "XEP-<xsl:value-of select='/xep/header/number'/>";
             </ul></dd>
           </xsl:if>
           <dt>Copyright</dt>
-          <dd>&#169; 1999 &#x2013; 2020 XMPP Standards Foundation. <a href='#appendix-legal'>SEE LEGAL NOTICES</a>.</dd>
+          <dd>&#169; 1999 &#x2013; 2021 XMPP Standards Foundation. <a href='#appendix-legal'>SEE LEGAL NOTICES</a>.</dd>
           <dt>Status</dt>
           <dd>
             <p><xsl:value-of select='/xep/header/status'/></p>