Update to Redux 4.0.0

[madmax983]

4.0 of Redux was released, and it does have a few breaking changes, which makes me hesitate to update the StaticResource in this library, since people are actively using it.

Options: Have different version of Redux, and expose an attribute to select the version you want to use, default to the latest if not chosen.

It doesn't look like there is anything huge in the update versus 3.7.2, which is what is presently available. Opening this issue to gather any thoughts from people using this library.