Saw this code in a client's redux project, it was awesome to see that. So much easier than how we were about to do our very complex state updates. It takes away a lot of the complexity. Immediately copied that and showed it to our webdev channel.
I just pushed out a breaking set of changes a few days ago, and will likely make one more set of breaking changes to `createSlice` in the near future. After that, I'm hoping the API will _mostly_ be good to go, and I can push it towards 1.0 in the very near future.
