24-oct-2005 NvE Protection introduced in AliJet::AddTrack to prevent multiple storage of

24-oct-2005 NvE Protection introduced in AliJet::AddTrack to prevent multiple storage of
                the same track in case no private copy of the track is made.
                Memberfunction GetOpeningAngle introduced in Ali3Vector and Ali4Vector.
25-oct-2005 NvE Support introduced for user selectable angular units (rad or deg) in Ali3Vector,
                Ali4Vector and all derived classes.