from Gabriel: fix TMath::Binomial to return NaN for invalid input parameters
from Gabriel: fix TMath::Binomial to return NaN for invalid input parameters


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@44433 27541ba8-7e3a-0410-8455-c3a389f83636

bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT