+Changes since 2.16: Added a -window-id argument to most hacks, so that they
+ can draw on arbitrary externally-provided windows.
+ Synched with xlockmore 4.11a01.
+ Added `flow' hack.
+ Added `atlantis' GL hack.
+ Renamed `puzzle' hack to `jigsaw', since xlock already
+ had a different mode called `puzzle'.
+ Made it self-configure properly when Motif 2.1.0 is
+ being used (requires -lXp now, sigh...)
+Changes since 2.15: Made `flag' able to do XPM images.
+ New look for the xscreensaver logo (`xroger').
+ Fixed compilation error on Suns with adjunct passwords.
+ Got multi-architecture builds working again.
+ Some configure tweaks for building on HPUX and Solaris.
+ Fixed bug in decayscreen.
+ Fixed typo in passwd.c.
+ Made `cynosure' not die when colormap is full.
+Changes since 2.14: Added `cynosure' hack.
+ Added `moire2' hack.
+ Tweaked `erase.c' some more.
+ Made unfading a bit smoother.
+ Added `vidwhacker' hack (not installed by default.)
+ Added `stairs' hack.
+ Split `escher' into `cage' and `moebius', as per
+ xlockmore.
+ Changed subprocess handling to use sigaction() instead
+ of signal() if it's available (this is necessary for
+ SCO but should work fine on other systems too.)
+ Various other tweaks.
+Changes since 2.13: Better fix for the Motif drag-and-die lossage.
+ Put in some kludges to work around a LessTif bug.
+ XScreenSaver is known to work with LessTif 0.82 now.
+ Made fading work on high-end SGI video hardware.
+ Fixed another SGI-specific bug in screen grabbing;
+ will the madness never cease?
+ Fixed another crash in `xlyap'.
+Changes since 2.12: Made `decayscreen' do directions other than down.
+ Improved `puzzle'.
+ Fixed a crash in `xlyap'.
+ Added CDE info to the man page, removed `cde.txt'.
+ Configure tweaks for Zippy.
+ Turned off the signal handling in `bubbles' because
+ it was sometimes failing to die.
+ Added `hacks/xscreensaver-sgigl.c' to make it possible
+ to run SGI's ElectroPaint hack (/usr/demos/bin/ep)
+ with xscreensaver. Finally!
+ Fixed a buffer overrun in the locking code that some
+ wily, malicious cracker must have slipped in.
+ Disabled Motif drag-and-drool in the dialog box
+ buttons, since it's broken in some old versions of
+ Motif.
+Changes since 2.11: Added `README.debugging'.
+ Added `puzzle' hack.
+ Added `xlyap' hack.
+ Added "default-n" as a visual name, so that one can
+ have -install on by default, but turn it off for
+ certain poorly-behaved hacks (like xv.)
+ Added support for grabbing frames of external video
+ (on SGI) to the screen-grabbing hacks (decayscreen,
+ slidescreen, slip, blitspin, and puzzle.)
+ Improved look of tiles in `slidescreen'; fixed its
+ color allocation problem.
+Changes since 2.10: Tweaked `blitspin', added it to the default list.
+ Added `lissie', `mountain', `triangle', `worm',
+ `rotor', and `ant' from xlockmore.
+ Updated `sierpinski', `galaxy', and `lisa'.
+ Thickened the lines in `braid' and `lmorph'.
+ Updated VMS makefiles.
+ Renamed `fract' to `vines'.
+ Added `xjack' hack.
+ Made a few more hacks use erase.c, and added a few
+ more wipe styles.
+ Fixed compilation problem with Sun's version of OpenGL.
+ Added ability to use sigaction() instead of signal()
+ to work around a SCO kernel bug.
+Changes since 2.09: Fixed colormap bugs in `rd-bomb'; sped up `coral'.
+ Configure tweaks for *BSD.
+Changes since 2.07: New hacks `rd-bomb' and `coral'.
+ New version of `maze' with some new algorithms.
+ New colorized version of `rocks'.
+ Fixed a bug in qix on 64-bit machines.
+ Fixed a bug in the -time option.
+ Fixed a bug in configure related to LessTif.
+Changes since 2.06: Minor header tweaks in windows.c and flag.c.
+ Made multi-architecture (VPATH) builds work properly.
+ Merged new GL stuff from xlockmore (rubik, morph3d.)
+ Fixed intermittent crashes in `imsmap' and `munch'.
+ Added `fadeplot' hack from xlockmore.
+Changes since 2.05: Merged in VMS support from Patrick Moreau.
+Changes since 2.04: Fixed a MIT-SCREEN-SAVER-related crash, and tweaked
+ configure to detect the extra-random -Xss library.
+Changes since 2.03: HP configure tweaks. Detect and warn about LessTif.
+ Fixed low-color behavior of `goop', `pyro', `starfish',
+ `greynetic', `flame', `halo', and `moire'.
+Changes since 2.02: Fixed flicker in `pipes'. Fixed 3d in `bouboule'.
+ Added `munch' hack.
+ Added basic dependencies to the Makefile.in files.
+Changes since 2.01: Fixes for compiling with the MIT saver extension.
+ Made the yow/fortune program be a configure option.
+ Various configure tweaks.
+Changes since 2.00: Added `goop' and `starfish' hacks.
+ Added colomap cycling to `halo'.
+ Made `attraction' use the new colormap allocator.
+ Added better $PATH diagnostics.
+ There was a bug in frand! Color selection should be
+ much improved now.
+Changes since 1.34: Converted to use `configure' instead of `imake'.
+ ANSI C is now required.
+ Added Kerberos locking support, from Nat Lanza.
+ Made the stderr text use overlay planes, if possible.
+ Reworked the xlockmore compatibility stuff again.
+ Added `gears', `superquadrics', `escher', `pipes',
+ and `sproingies' hacks (depend on OpenGL.)
+Changes since 1.33: Fixed some bugs, made fading be a little smoother.
+Changes since 1.32: Made it work with multi-headed displays.
+ Generalized sub-process management (Unix sucks!)
+ Added interactive mouse frobbing to Julia.
+ Added (untested) support for HPUX shadow passwords.
+ Made normal non-shadow passwords be checked if the
+ shadow passwords aren't accessible for some reason.
+Changes since 1.31: Removed *colorPrograms and *monoPrograms resources:
+ made it possible to specify the desired visual on a
+ per-hack basis.
+ Cleaned up / restructured the driver: no more globals.
+ Made the Motif and Athena dialogs share more code.
+ Probably fixed some Athena colormap-installation bugs.
+ Fixed screen grabbing (cmap) on SGI 12-bit PseudoColor.
+ Fixed divide-by-zero in bright random colormaps.
+ Added an improved version of xlock's `flag' hack.
+ Made unfading work better, and not flicker on SGIs.
+ Added `sphere', `forest', `lisa' hacks from xlockmore.
+ Added (untested) support for SunOS Adjunct passwords.
+Changes since 1.30: Improved colors and colormap cycling of many hacks.
+ Cleaned up xlockmore compatibility layer.
+ Made `blitspin' able to grab an image off the screen.
+ Ported `swirl' and `bouboule' hacks from xlockmore.
+ Made the driver more careful about not leaving bits on
+ the screen, or allowing other windows to raise
+ themselves: it now re-blanks the screen every so often.
+ Added `-time' option to `xscreensaver-command'.
+ Improved SGI screen-grabbing some more: now it can grab
+ TrueColor screens into PseudoColor windows and have the
+ colors still come out semi-reasonably.
+Changes since 1.29: Made `slidescreen' and `decayscreen' work better on
+ SGIs when windows of different visuals are present, by
+ using the XReadDisplay() extension to get a true 24-bit
+ image out of the frame buffer.
+ Made `noseguy' be in color, if compiled with XPM.
+ Ported `braid', `drift', `fract', `galaxy', `grav',
+ `ifs', `julia', `laser', `lightning', `penrose',
+ `sierpinski', `slip', `spiral', and `strange' hacks
+ from xlockmore.
+ Merged `hopalong' hack with a more recent version.
+ Added `cde.txt'.
+Changes since 1.27: Added `deco', `moire', and `kaleidescope' hacks.
+ Merged in support for non-Motif locking and demo mode.
+ Made `blitspin' and `bubbles' work in TrueColor.
+ Fixed a stupid bug I introduced in `imsmap'.
+ Added `poly' and `gravity' options to `qix'.
+Changes since 1.26: Added support for SGI SCREEN_SAVER extension.
+ Made `fade' and `unfade' work on 8-bit SGIs.
+ Made the dialog boxes more Motify.
+ Added `bubbles' hack.
+Changes since 1.25: Added `lmorph' hack.
+ Added viscosity and mouse-control to attraction.
+ Fixed possible bad color choices in qix and attraction.
+ Added ramp-mode to halo.
+ Added a new RNG, which is faster and more portable
+ than using the RNG in libc.
+ Made locking work on SCO.
+ Various other minor tweaks that I don't remember.
+Changes since 1.24: Made it capture the stdout/stderr of its subprocesses
+ and present them on the screensaver window itself.
+ Made demo mode work correctly with non-default visuals
+ and color maps, instead of always using the defaults.
+ Added -visual argument to all included screenhacks.
+ Support for the R6 MIT-SCREEN-SAVER server extension.
+ Made the demo mode list scroll properly.
+ Added `pedal' hack.
+Changes since 1.23: Fixed some private-colormap oddities in slidescreen,
+ decayscreen, and xroger. Fixed apparent conservation-
+ of-mass problem in pyro; made the shrapnel round.
+Changes since 1.22: Minor tweaks for IRIX5; fixed locking race condition.
+Changes since 1.21: Minor tweaks for X11R6.
+ Fixes for non-default visuals.