GeneratorFilters: fix mistakes, Powheg: update to v. -05-05
GeneratorFilters: fix mistakes in xAODForwardProtonFilter and xAODParentChildFilter,
Powheg: update to v. -05-05 (note the ggf_HH process won't work, because it requires python2.7)
GeneratorFilters: fix mistakes in xAODForwardProtonFilter and xAODParentChildFilter,
Powheg: update to v. -05-05 (note the ggf_HH process won't work, because it requires python2.7)