message: added handling for probabilities of 0
diff: @@ -44,6 +44,10 @@ setup.weightedRandomFetcher = function (town, args, obj, exclusionFunction, outp
  } else {
  isValid = true
  }
  + if (args[arg].probability <= 0) {
  + isValid = false
  + }
  +
  // console.log('fnValid: ')
  // console.log(args[arg])
  if (typeof (exclusionFunction) === 'function') {
  