message: Set minValue attribute to 0.1 for rateStep property in rating question
diff: @@ -183,7 +183,7 @@ Serializer.addClass(
  },
  { name: "rateMin:number", default: 1 },
  { name: "rateMax:number", default: 5 },
  - { name: "rateStep:number", default: 1, minValue: 1 },
  + { name: "rateStep:number", default: 1, minValue: 0.1 },
  {
  name: "minRateDescription",
  alternativeName: "mininumRateDescription",
  