Added ability to ship directly to elasticsearch.

packages/RestSharp.104.4.0/readme.txt

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+*** IMPORTANT CHANGE IN RESTSHARP VERSION 103 ***
+
+In 103.0, JSON.NET was removed as a dependency. 
+
+If this is still installed in your project and no other libraries depend on 
+it you may remove it from your installed packages.
+
+There is one breaking change: the default Json*Serializer* is no longer 
+compatible with Json.NET. To use Json.NET for serialization, copy the code 
+from https://github.com/restsharp/RestSharp/blob/86b31f9adf049d7fb821de8279154f41a17b36f7/RestSharp/Serializers/JsonSerializer.cs 
+and register it with your client:
+
+var client = new RestClient();
+client.JsonSerializer = new YourCustomSerializer();
+
+The default Json*Deserializer* is mostly compatible, but it does not support
+all features which Json.NET has (like the ability to support a custom [JsonConverter]
+by decorating a certain property with an attribute). If you need these features, you
+must take care of the deserialization yourself to get it working.
+
+If you run into any compatibility issues with deserialization, 
+please report it to http://groups.google.com/group/restsharp