+-- 4-digit 7-segment control using Arduino MEGA 2560
+-- Copyright (C) 2012 Tero Koskinen <email@example.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 2
+-- 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, write to the Free Software
+-- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+-- As a special exception, if other files instantiate generics from this
+-- unit, or you link this unit with other files to produce an
+-- executable this unit does not by itself cause the resulting
+-- executable to be covered by the GNU General Public License. This
+-- exception does not however invalidate any other reasons why the
+-- executable file might be covered by the GNU Public License.