                                                                  -*-*- END -*-*-
 2002/06/12: Thomas Bretz

   * MElectron.[h,cc]:
     - added a primitive theta dependancy to DoInvCompton
     - added DrawInteractionLength
     
   * MParticle.[h,cc]:
     - added RofZ and ZofR as static functions

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

   * energyloss.C:
     - added



 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
     
     
