Replace interface to Pythia6.1 by 6.2. The main difference is the size

of the common block /pydat3/. The new definition is
struct Pydat3_t {
  int    MDCY[3][500];
  int    MDME[2][KNDCAY];
  double BRAT[KNDCAY];
  int    KFDP[5][KNDCAY];
};

instead of:
struct Pydat3_t {
  int    MDCY[3][500];
  int    MDME[2][4000];
  double BRAT[4000];
  int    KFDP[5][4000];
};

where KNDCAY=8000. To run with the previous version of Pythia5.1,
simply change KNDCAY from 8000 to 4000.


git-svn-id: http://root.cern.ch/svn/root/trunk@5603 27541ba8-7e3a-0410-8455-c3a389f83636