correct copy year

LICENSE

@@ -1,4 +1,4 @@
-Copyright (C) 2012 Hakim El Hattab, http://hakim.se
+Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

js/reveal.js

@@ -3,7 +3,7 @@
  * http://lab.hakim.se/reveal-js
  * MIT licensed
  * 
- * Copyright (C) 2012 Hakim El Hattab, http://hakim.se
+ * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
  */
 var Reveal = (function(){