Have JsonRpcClient use .NET 4.0 ExpandoObject to dynamically generate API

[GoogleCodeExporter]

Most JSON-RPC client implementations dynamically generate their API according 
to what is returned by system.listMethods. Therefore instead of this:

Console.WriteLine(client.Invoke("sum", new JsonObject { { "a", 123 }, { "b", 
456 } }));

... one simply does this:

Console.WriteLine(client.sum(123, 456));

.NET now has the ExpandoObject facility to allow runtime generation of methods. 
Having JsonRpcClient make use of this would make life for user code much easier.

Thanks,
Niall

Original issue reported on code.google.com by nialldouglas14 on 20 Jul 2011 at 3:09