[Bug] - DeprecationWarning on instantiation of Client

[cgearing]

Hi there,

It looks like based on how the deprecations were implemented in #107 results in a DeprecationWarning on instantiating a client, e.g:

>>> config = {
...     "api_key": "your_api_key",
...     "nodes": [
...         {"host": "localhost", "port": "8108", "protocol": "http"}
...     ],
...     "connection_timeout_seconds": 2,
... }
>>> client = Client(config)
Deprecation warning: AnalyticsRulesV1 is deprecated on v30+. Use client.analytics instead.

It would be great for this not to happen, since it fills up logs with noise.

[tharropoulos]

Deprecation warnings only appear once per instance. You can also skip them through suppress_deprecation_warnings

[ianjosephwilson]

What is the call to action on this warning? Are we somehow implicitly using the wrong analytic version?

[tharropoulos]

On versions v30+, accessing an old endpoint will either lead to validation errors (on Analytics) or resource missing errors (on Synonyms & Curation).

We opted to have this deprecation warning be logged when instantiating the Client, so users don't have to deal with a stacktrace alongside the deprecation warning.