Added copyright header.

Please add your name to the copyright notice if you've contributed to it.
I haven't taken the liberty to your names even tho some of yours appear in the CVS.

desmume/src/cli/main.c

@@ -1,3 +1,23 @@
+/* main.c - this file is part of DeSmuME
+ *
+ * Copyright (C) 2006,2007 DeSmuME Team
+ * Copyright (C) 2007 Pascal Giard (evilynux)
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
 #include "SDL.h"
 #include <stdlib.h>
 #include <string.h>