CVS tadam: Fix compiler warnings.

[cvs]

CVSROOT:        /home/cvs/fvwm
Module name:    fvwm
Changes by:     tadam   11/04/15 06:57:02

Modified files:
        .              : ChangeLog 
        libs           : FBidi.c fsm.c 
        modules        : ChangeLog 
        modules/FvwmIconMan: xmanager.c 

Log message:
Fix compiler warnings.