Decfile for D*->D0 pi, D0->KsKs decays (upgrade studies)
Added decfile for D*->D0 pi, D0->KsKs, Ks->pi+pi- decays, requiring only that the decay products are in LHCb acceptance (for upgrade-trigger studies). The neutral flag is set to 9 because all event types, with extra flag 0 or 7, are in use already (as suggested in MR !354 (merged))