Added GPL copyright

[Anders Reggestad <andersr@pvv.ntnu.no>]

Now every source file include this copyright message. If you create a new
source file please include this text at the top.

/*
 * PVVMUD a 3D MUD
 * Copyright (C) 1998-1999  Programvareverkstedet (pvv@pvv.org)
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */


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|    ******   Anders Reggestad                                         |
|  *   *   *  Mobil tlf.   : 95044443                                  |
| *    *   *  E-Mail       : andersr@pvv.ntnu.no                       |
| *********   Post adresse : Haug Prestegård 3300 Hokksund             |
| *    *   *  Jobb adresse : Kongsberg Defence & Aerospace AS          |
| *    *    * Hjemmeside   : http://www.pvv.ntnu.no/~andersr           |
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