Merge pull request #5792 from bendavid/py8200final_73x

Interface changes to go with Pythia 8.200 official release (73x)
Merge pull request #5802 from bendavid/py8200final_53x

Backport of interface changes to go with Pythia 8.200 final (53x)
Merge pull request #267 from cms-sw/CMSSW_5_3_X

Cmssw 5 3 x