support double data without "d" suffix about dart-gson

[ismlsmile]

in decoder.dart, modify like this, it it ok?

  case "d":
    ret = new Double(num.parse(number));
    if (!p.ended) {
      p.skip();
    }
    break;
  default:
    if(number.indexOf(".") != -1)
    {
      ret = new Double(double.parse(number));
    }
    else
    {
      ret = new Integer(num.parse(number));
    }

    break;

[MinimineLP]

Yes, thank you, I was able to recreate the exception and your solution also fixes it, thank you very much, I will commit the solution.

Minimine