CVS renato: increased version numbers for 2.6.23

[FVWM CVS]

CVSROOT:        /home/cvs/fvwm
Module name:    fvwm
Changes by:     renato  07/08/29 07:35:01

Modified files:
        .              : ChangeLog NEWS configure.ac 

Log message:
increased version numbers for 2.6.23