BristolTopGroup/NTupleProduction — pull request #97 by EmyrClement (2014-07-22 13:43:01+00:00)
Title: Fix bug in crab configuration for hadronisation systematic sample

The powheg-herwig sample has the same gen level structure as MC@NLO according to this random twiki:
https://twiki.cern.ch/twiki/bin/view/CMSPublic/TtbarAnaStatus2

Adding the isMCatNLO flag results in the ttbar decay analyzer being able to study the ttbar decay.