context.succeed would be called multiple times

I'm a little confused how the `kinesis_lambda_es.js` example is supposed to work. [Documentation says](http://docs.aws.amazon.com/lambda/latest/dg/nodejs-prog-model-using-old-runtime.html#nodejs-prog-model-context-methods-succeed) that context.succeed, when called, will terminate the lambda.

However, the example [would call context.succeed](https://github.com/awslabs/amazon-elasticsearch-lambda-samples/blob/master/src/kinesis_lambda_es.js#L73) for every HTTP response callback of AWS ElasticSearch. Which is correct? These two sources seem to contradict each other. If the docs.aws.amazon.com site is correct, then wouldn't the context.succeed callback need to occur after ALL ES calls had their callbacks called?

Comienza con src/kinesis_lambda_es.js en la llamada a context.succeed alrededor de la línea 73 y, después, compara su flujo de callback con la documentación vinculada de AWS Lambda context-methods. Confirma si el manejo de finalización del ejemplo coincide con el comportamiento documentado y actualiza el ejemplo o su documentación para que el punto de finalización esperado no sea ambiguo.

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