Import Geant4 5.0.0 source tree

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+
+                 Geant4 4.1 - patch-01 Release Notes
+                 -----------------------------------
+
+                                                      31st July 2002
+
+List of fixes included in this public patch to release 4.1:
+
+  o Config:
+    ------
+    - Upgraded WIN32-g++ setup to compile with -ansi and gcc-2.95.3 for
+      most recent versions of CygWin. 
+
+  o Electromagnetic processes (low-energy):
+    --------------------------------------
+    - Bug fix in delta-electron spectra.
+    - Bug fix in simulation of EM processes in compounds.
+    - Optimised loading of data in G4AugerData.
+
+  o Event:
+    -----
+    - G4PrimaryParticle:
+      o Bug fixed in the initialisation of 'charge' for all constructors.
+
+  o Geometry:
+    --------
+  + magnetic-field:
+    - G4FieldManager:
+      o made 'fDefault_Delta_One_Step_Value' and 
+        'fDefault_Delta_Intersection_Val' non static constants to resolve
+        initialisation problems. Fixes problem report #383. 
+    - G4ChordFinder: 
+      o in NewStep, fixed case of stepTrial >> stepTrialOld, to take
+        large multiple - not small 
+      o added guard for stepTrial==0.0 in FindNextChord(). 
+    - G4MagIntegratorDriver: 
+      o added protection against error of 0.0 in ComputeNewStepSize. 
+      o cleared warning of unused variable.
+    - G4EquationOfMotion: 
+      o made RightHandSide() an inline method 
+      o in GetFieldValue() signature of Point is double[4],
+        instead of double[3] 
+      o defined G4maximum_number_of_field_components as enum. 
+  + solids/CSG:
+    - G4Cons:
+      o Bug fixed in DistanceToIn(p,v) concerning z-crossing at
+        the edge with Rmin,Rmax.
+  + solids/STEP:
+    - Fixed GNUmakefile to parse 'g++' string in G4SYSTEM to detect
+      non-ISO setup for gcc-2.95 and higher.
+  + solids/STEPinterface:
+    - Fixed GNUmakefile to parse 'g++' string in G4SYSTEM to detect
+      non-ISO setup for gcc-2.95 and higher.
+  + verification:
+    - G4GeomTestVolume:
+      o Fixed recursive call to G4GeomTestVolume to consider also
+        'tolerance' as argument in the recursive test algorithm.
+  + volumes:
+    - Code cleanup and cosmetics for most classes.
+    - G4PropagatorInField:
+      o In ComputeStep(), reset status to original by setting 'fNoZeroStep'
+        to zero if (fNoZeroStep > fAbandonThreshold_NoZeroSteps).
+        Fixes a problem observed in cases when a looping track is killed,
+        the bug was causing also subsequent tracks to be killed.
+      o Removed not-implemented constructor taking G4Navigator* as argument. 
+      o Get rid of static const data for default 'epsilonStep' size. 
+      o Initialised all data members in constructor!
+
+  o Global:
+    ------
+    - G4Allocator:
+      o Moved page size to become data-member of G4Allocator.
+        'fPageSize' is now computed according to the size of the object 
+        to be allocated. The default size is 1024 bytes for objects whose
+        size is less than 512 bytes, 10 times the size of the object otherwise. 
+
+  o Hadronic processes:
+    ------------------
+  + management, utils, models/high_energy:
+    o Introduced accounting of strange baryons. 
+    o Introduced accounting for anti-nucleons and strange mesons. 
+    o Improved treatement of inelasticity for annihilation events and pion 
+      absorptive reactions. 
+    o Added protection in the call to phase-space method for pion induced
+      reactions.
+    o Fixed error in energy conservation observed by BTEV. 
+      Used to show (1/500) for 1.5-2.5 GeV pion reactions in medium A nuclei. 
+  + cross-sections:
+    o Fixed bug in caching information in gamma nuclear cross-sections
+      (G4PhotoNuclearCrossSection). 
+
+  o Examples:
+    --------
+    - Corrected README in exampleN01.
+    - Updated reference outputs.
+
+ ----------------------------------------------------------------------------
+
+                             Technical Notes
+                             --------------- 
+
+  o  This patch should be applied on top of release 4.1.
+  o  Technical notes distributed for release 4.1 are also applicable and
+     valid for this patch.
+
+The code and rebuilt binary libraries for release 4.1 are available through
+our "Source Code" Web page:
+- see our <A href="http://cern.ch/geant4">Geant4 Home Page</A>.
+
+Please refer to <A
+href="http://cern.ch/geant4/G4UsersDocuments/Overview/html/index.html">Geant4
+User Documentation</A> for further information about using Geant4.