Uncaught TypeError: momentFn is not a function

I've already got installed moment, react but getting this error on rendering
Using latest version of react-datetime

```
Uncaught TypeError: momentFn is not a function
at Object.localMoment (DateTime.js:372)
at Object.getFormats (DateTime.js:122)
at Object.getStateFromProps (DateTime.js:66)
at Object.getInitialState (DateTime.js:55)
at new eval (factory.js:789)
at eval (ReactCompositeComponent.js:295)
at measureLifeCyclePerf (ReactCompositeComponent.js:75)
at ReactCompositeComponentWrapper._constructComponentWithoutOwner (ReactCompositeComponent.js:294)
at ReactCompositeComponentWrapper._constructComponent (ReactCompositeComponent.js:280)
at ReactCompositeComponentWrapper.mountComponent (ReactCompositeComponent.js:188)
```

# I'm Submitting a ...

```
[x] Bug report
[ ] Feature request
[ ] Support request
```

Riproduci il problema di rendering con le versioni installate di moment e React, quindi esamina DateTime.js intorno a localMoment alla riga 372 e il percorso getFormats/getStateFromProps mostrato nello stack trace. Conferma la causa del momentFn TypeError e verifica che il rendering di react-datetime non lo generi più.

Scritto dal modello di indicizzazione a partire dal testo della issue.