Warn but not throw when the monitor is rendered without being included in the store configuration

[zalmoxisus]

Related to zalmoxisus/redux-devtools-extension#57

[gaearon]

Can you help me understand why this is needed? We can add more state to the future so it’s not just about initial scroll top.

[zalmoxisus]

It will not affect the regular usage, but will allow to render the monitor without having DevTools's instrumentation enhancer added to the store. It is just a convenience for switching from using vanilla DevTools to the extension and back by changing only the store enhancer to

window.devToolsExtension ? window.devToolsExtension() : DevTools.instrument()

Of course, instead of implementing this hacky change better to also add as we recommend

{ !window.devToolsExtension ? <DevTools /> : null }

but usually users forget about the rendering part and it's not obvious what is the problem when getting the error as in zalmoxisus/redux-devtools-extension#57.

[gaearon]

I don’t fully understand it but I’ll take it 😄