Trying to make it work with redux-auth

Hi,

This is not an issue but rather a question.
I am trying to make redux-auth work with redux-immutable. There is an issue because redux-auth tries to access the "auth" part of the state through `state.auth`, which of course does not work.

I would like to define a getter allowing access to `auth` via `state.auth` every time the state changes by doing:
```
Object.defineProperty(
store.getState(),
'auth', {
get: function() { return this.get('auth');
}
});
```

That would fix this [known issue](https://github.com/lynndylanhurley/redux-auth/issues/20).

Could you help me with that by telling me if it is possible or not?
I guess it is not a great solution but I think it would help many people.

Thanks in advance,
Cheers

Start by reviewing the store.getState() access pattern and the proposed Object.defineProperty getter, then read the linked redux-auth issue for compatibility context. Done would require a decided, documented approach for accessing auth state with redux-immutable; the issue does not name files or tests.

Written by the indexing model from the issue text.