Log Message:
Update to 5.00:

Changes since 4.24:   * Ported to MacOS X! (10.4.0 or newer)
                      * API change: instead of providing a single screenhack()
                        function that does not return, screen savers using the
                        screenhack.h framework must now provide "init" and
                        "draw one frame" functions instead.  All \ 
bundled savers
                        have been updated; third-party patches will need work.
                      * All image-loading happens asynchronously.
                      * xscreensaver-getimage-file caches the contents of the
                        image directory for a few hours, so consecutive runs
                        won't have to re-list the whole directory tree.
                      * New hacks, `topblock' and `glschool'.
                      * Removed `xteevee' (superceded by `xanalogtv').
                      * Added variable-sized puzzle pieces to `jigsaw'.
                      * Changes to the defaults and command-line options of
                        many hacks to make the .xml files more consistent.
                      * Reap zombies in `glslideshow' and `carousel'.
                      * `sonar' works without setuid on OSX (dgram icmp).
                      * `xmatrix -mode pipe' displays the text of a subprocess.
                      * `endgame' has higher resolution chess-piece models.
                      * `webcollage' takes a -directory option to get images
                        from a local directory.
Changes since 4.23:   * New versions of `cube21', `glsnake', `celtic'.
                      * Backed out a DPMS-related patch that cause desktop
                        flickering with some X servers.
                      * Fixed startup crash in getgroups() when running setuid.
                      * Default to not displaying stderr on the saver window.
                      * Fixed bad free() in "Documentation" button.
                      * Don't try to run hacks that aren't installed.
                      * Minor fixes to various XML config files and man pages.
Changes since 4.22:   * New hacks, `glhanoi', `cube21', `timetunnel',
                        `juggler3d', and `celtic'.
                      * New versions of `tangram', `webcollage', `hypertorus',
                        `polytopes', and `ripples'.
                      * `sonar' is now quiet about unresolvable hosts.
                      * Minor corrections to BASIC code in `apple2'.
                      * Don't install `ant' by default, since there is some
                        Java tool of that name, which was causing confusion.
                        And also it's boring.
                      * Made screen grabbing work again on MacOS 10.4.2.
                      * No longer prints bogus warnings about ClientMessages
                        intended for the window manager.
                      * Ignore unprintable characters in passwd entry field.
                      * Fixed yet another cross-host-display image-loading
                        endian problem.
                      * `xscreensaver-command -watch' and `-time' now work
                        on 64-bit machines.