copy from gui/src/OctaveCallbackThread.h
copy to gui/src/backend/OctaveCallbackThread.h
--- a/gui/src/OctaveCallbackThread.h
+++ b/gui/src/backend/OctaveCallbackThread.h
@@ -1,3 +1,21 @@
+/* OctaveGUI - A graphical user interface for Octave
+ * Copyright (C) 2011 Jacob Dawid
+ * jacob.dawid@googlemail.com
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 #ifndef OCTAVECALLBACKTHREAD_H
 #define OCTAVECALLBACKTHREAD_H