27-jun-2001 NvE Overloaded memberfunction names Add(AliJet*) and Add(AliVertex*) corrected
into AddJet(AliJet*) and AddVertex(AliVertex*) in class AliVertex.
29-jun-2001 NvE TrackCopy mode introduced in AliJet.
+02-jul-2001 NvE Misplaced statement corrected in AliJet::SetNtinit().
+03-jul-2001 NvE Protections added in AliJet::GetTrack() and AliVertex::GetVertex() and
+ VertexCopy introduced in AliVertex.
+ Naming facility introduced in AliCalorimeter in order to identify
+ different calorimeter systems in an event structure.
+ Storage of jets introduced in AliVertex on the same footing as the
+ storage of (secondary) vertices.
+04-jul-2001 NvE Storage of calorimeters introduced in AliEvent and ResetVertices()
+ added to AliVertex.
+05-jul-2001 NvE Clone() facility used in AddTrack() etc... of AliEvent & co. instead of
+ "new" in the case of TrackCopy etc... This in order to enable 'permanent'
+ AliTrack etc... storage in AliEvent & co.
+ Also (Ali4Vector&) casting stmt. in AliVertex::ResetVertices() changed
+ to make it ANSI compatible for all compilers/platforms.
+09-jul-2001 NvE Support for impact points and user identifier introduced in AliTrack.
+ Also user identifier facility introduced for AliJet and AliVertex.
+12-jul-2001 NvE Memberfunction GetDistance() introduced for AliPosition and support for
+ point of closest approach introduced in AliTrack.
+24-jul-2001 NvE Support for Chi2 and NDF information of track fit introduced in AliTrack.