Copyright notices in source files

git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@217 416bcca6-2ee7-4201-b75f-2eb2f807beb1

palette.c

@@ -1,3 +1,23 @@
+/*  Grafx2 - The Ultimate 256-color bitmap paint program
+
+    Copyright 2007 Adrien Destugues
+    Copyright 1996-2001 Sunset Design (Guillaume Dorme & Karl Maritaud)
+
+    Grafx2 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; version 2
+    of the License.
+
+    Grafx2 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 Grafx2; if not, see <http://www.gnu.org/licenses/> or
+    write to the Free Software Foundation, Inc.,
+    59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+*/
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>