CVS griph: * allow WindowShade to reshade windows using last shade direction.

[FVWM CVS]

CVSROOT:        /home/cvs/fvwm
Module name:    fvwm
Changes by:     griph   06/04/16 04:20:40

Modified files:
        .              : ChangeLog NEWS 
        fvwm           : add_window.c fvwm.1.in windowshade.c 

Log message:
* allow WindowShade to reshade windows using last shade direction.