Don't rely on status code to deserialize all responses

[wparad]

Right now the library deserializes responses based only on the status code, which means every time a status code result is changed or added to the API, the python library will start to serialize the response as None. This shouldn't happen that frequently, but it is a risk having it in the library like that.

Recommendation: Default Serialization strategy that doesn't throw on mismatches.