If any action on a data store is used with the wrong type, we should show an error to the console

[alexflorisca]

Now that we have a few public data stores, any plugin can theoretically access the actions and selectors here. To encourage developers to use the actions correctly, I propose we log a console.error if an action is passed the wrong type of data.

[alexflorisca]

Since we haven't made any of the actions public yet, I'm closing this as it's not relevant any more. Once we decide to open up certain data store actions for third party use, we can add this in for those actions only, otherwise it bloats the code too much.