naive ServiceStack => ReactiveExtensions mapping

ObservableServiceClient.cs

public class ObservableServiceClient : IObservableServiceClient
{
	private readonly string _baseUri;

	public ObservableServiceClient(string baseUri)
	{
		_baseUri = baseUri;
	}

	public IObservable<TResponse> ObserveMany<TResponse>(IReturn<IEnumerable<TResponse>> request)
	{
		return Observable.Start(() =>
		{
			var client = new JsonServiceClient(_baseUri);
			return client.Send(request);
		}).SelectMany(_ => _);
	}
}