08-feb-2003 NvE Class AliSignal modified such that the maximum number of signal slots is

08-feb-2003 NvE Class AliSignal modified such that the maximum number of signal slots is
                handled completely dynamically at runtime.
                Memberfunctions SetSignal() and AddSignal() of class AliCalmodule declared
                virtual to enable inheritance.
09-feb-2003 NvE Class AliCalcluster derived from AliSignal to enable automatic signal setting
                for various rings of modules around the cluster center.