+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.