Update JsonDeserializer.cs

Fix for bug parsing an array of doubles. (Issue #373)

Author: kgorking

RestSharp/Deserializers/JsonDeserializer.cs

@@ -113,8 +113,8 @@ private IList BuildList(Type type, object parent)
 				{
 					if (itemType.IsPrimitive)
 					{
-						var value = element.ToString();
-						list.Add(value.ChangeType(itemType, Culture));
+						var item = ConvertValue(itemType, element);
+						list.Add(item);
 					}
 					else if (itemType == typeof(string))
 					{
@@ -245,4 +245,4 @@ private object CreateAndMap(Type type, object element)
 			return instance;
 		}
 	}
-}
+}