Done. BaseAsyncClientTest extends BaseAsyncApiTest which in turn extends BaseRestApiTest. AFAICT there isn't anything about BaseAsyncClientTest (everything I see it does is done synchronously). I think this may have been named Async since the tests built on top this were supposed to be async. But I may be wrong.

Happy to change this in a separate commit. For now, would prefer this commit be only about LocalAsyncBlobStore <-> LocalBlobStore.