                                                                  -*-*- END -*-*-
 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
     
     
