-*-*- END -*-*-
 2002/06/13: Thomas Bretz

   * MParticle.h:
     - Implemented Set/IsPrimary
     - removed pure abstract method (root can't read this)
     - added default constructor

   * MElectron.cc:
     - changed many variables to const
     - changed the output

   * MPairProduction.cc:
     - changed many variables to const

   * MPhoton.[h,cc]:
     - changed the upper and lower limit of the integration in Int2
     - added upper and lower limit of draw to DrawInteractionLength

   * energyloss.C:
     - changed output range for ZofR

   * phys.C:
     - changed energy randomizer
     - added root file output
     - removed log scale from point spread plots

   * analp.C:
     - added macro to analize the photons from the root file

   * anale.C:
     - added macro to analize the electrons from the root file



 2002/06/12: Thomas Bretz

   * MElectron.[h,cc]:
     - added a primitive theta dependancy to DoInvCompton
     - added DrawInteractionLength
     - changed algorithm in ZofR and RofZ
     
   * MParticle.[h,cc]:
     - added RofZ and ZofR as static functions
     - changed from MParContainer to TObject
     - removed unnecessary or commented inline functions

   * MPhoton.[h,cc]:
     - added DrawInteractionLength
     - fixed the bug causing the 'strange factor': sigma_gg needs
       the sqrt of s.

   * energyloss.C:
     - added

   * MPairProduction.[h,cc]:
     - simplified formula
     - changed arguments to Energy of Photon and interaction angle

   * phys.C:
     - added correct photon energy for pair production
     - added correct angle for pair production
     - changed output to E^2*Counts
     - changed gamma production from E^-2 to Uniform by weighting
     - removed all unecessary functions and code (s.energyloss.C)



 2002/06/10: Thomas Bretz

   * MElectron.[h,cc], MPhoton.[h,cc], MParticle.[h,cc]:
     - implemented SetNewDirection, SetNewPosition
     - implemented DoInvCompton
     - =operator

   * MPairProduction.cc:
     - changed to use SetNewDirection Method

   * phys.C:
     - changed to new style functions

   * MGeinIRPhoton.cc, MGenPrimaryParticle.[h,cc]:
     - make compile (not used)
     - changed Process to get angle