01-sep-2003 NvE Explicit initialisation of TObject() introduced in default constructo...

01-sep-2003 NvE Explicit initialisation of TObject() introduced in default constructor of AliObjMatrix.
16-sep-2003 NvE Parent track pointer introduced for AliTrack.
                Functionality of AliSignal extended and support for gains and offsets introduced.
                Gain datamember removed from AliCalmodule.
17-sep-2003 NvE Memberfunction AddTrack with second argument "copy" of AliJet moved into the
                "protected" area to avoid confusion among users.
                The user has now only access to the AddTrack memberfunction with only the track
                (pointer) as argument.
23-sep-2003 NvE New classes AliAttrib and AliAttribObj introduced to centralise the handling of
                name, gain, offset, edge and dead value attributes for a certain slot.
                Classes AliSignal and AliCalmodule updated accordingly.
28-sep-2003 NvE Facility for automatic gain etc... correction introduced in AliSignal::GetSignal().
30-sep-2003 NvE New version of AliCalorimeter introduced, making use of AliObjMatrix and AliAttribObj
                and supporting full treatment of module gains, offsets etc...
                Also class AliCalcluster updated to take gain etc... correction into account.
02-oct-2003 NvE Memberfunction Load() moved from Ali3VectorObj and Ali4VectorObj to Ali3Vector
                and Ali4Vector respectively. This allows to use this memberfunction also in
                all the derived classes (e.g. AliPosition, AliSignal, AliTrack, etc...).
                Therefore the Load() memberfunction has been removed from AliPositionObj.