  blank   -  Copyright (c) 1997 Martin Jones <mjones@kde.org>
  banner  -  Copyright (c) 1997 Martin Jones <mjones@kde.org>
  polygon -  Copyright (c) 1997 Martin Jones <mjones@kde.org>
  lines   -  Copyright (c) 1997 Dirk Staneker
  blob    -  Copyright (c) 1997 Tiaan Wessels <tiaan@netsys.co.za>  
  
Ported from xlockmore: (but blame Martin if they don't work)
  rock    -  Copyright (c) 1992 Jamie Zawinski
  flame   -  Copyright (c) 1991 Scott Draves <spot@draves.org>
  pyro    -  Copyright (c) 1991 Patrick J. Naughton
  laser   -  Copyright (c) 1995 Pascal Pensa <pensa@aurora.unice.fr>

Ported from xlockmore by Emanuel Pirker <epirker@edu.uni-klu.ac.at>:
  bat     -  Copyright (c) 1988 Sun Microsystems
  forest  -  Copyright (c) 1995 Pascal Pensa <pensa@aurora.unice.fr>
  hop     -  Copyright (c) 1991 Patrick J. Naughton
  lissie  -  Copyright (c) Alexander Jolk <ub9x@rz.uni-karlsruhe.de>
  slip    -  Copyright (c) 1992 Scott Draves <spot@cs.cmu.edu>
  swarm   -  Copyright (c) 1991 Patrick J. Naughton
  morph3d -  Copyright (c) 1997 by Marcelo F. Vianna

Ported from xscreensaver by Alex Zepeda <garbanzo@hooked.net>
  bsod    -  Copyright (c) 1998 Jamie Zawinski <jwz@jwz.org>
