Log Message:
Update to 4.22:

Changes since 4.21:   * Fixed a bug in the new mouse-motion code that caused
                        the screen to never blank on multi-head non-Xinerama
                        systems.  Oops.
                      * New hacks, `interaggregate', `antmaze', `tangram',
                        and `crackberg'.
                      * Minor tweaks to `fiberlamp', `ifs', `slidescreen',
                        `zoom', `sonar', `fireworkx', `whirlwindwarp',
                        `bubble3d', and `rd-bomb'.
                      * Added motion blur to `blinkbox'.
                      * `bsod' now includes Longhorn's "RSOD", and OS/2.
                      * Fixed `-wireframe' usage in most hacks and man pages.