Format value from input type=“datetime-local” for react-datetime

### I'm Submitting a ...

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

### Steps to Reproduce

I need to use `input type='datetime-local'` in Datetime component, so I added `inputProps={{ type: 'datetime-local' }}` there. `input type='datetime-local'` needs to have some specific format for value like `yyyy-MM-ddThh:mm`, so I added `format` for date

```javascript
var date = moment().format('YYYY-MM-DDTHH:mm');

React.render(
,
document.body
);
```

There are no problems with choosing date, but when I'm trying to set time, I get some random date and can't choose any time at all.

### Expected Results

### Actual Results

### Minimal Reproduction of the Problem

I've tried to reproduce the problem, but there it doesn't work at all - it doesn't allow to choose any date or time.
[https://codepen.io/anon/pen/KRYEyZ](url)

### Other Information (e.g. stacktraces, related issues, suggestions how to fix)

Maybe it is possible to change format of value from `yyyy-MM-ddThh:mm` to `yyyy-MM-dd hh:mm` before passing it to calendar?