Error on android when using datesBlackList

When I use datesBlackList prop I have a "Cannot read property scrollToIndex of undefined" error on android.
Everything works fine on iOS.

My datesBlackList :

```
const datesBlacklist = [
{
start: moment().subtract(1, 'week'),
end: moment().subtract(1, 'day'),
},
];
```

Fix proposed : add a `&& this.rlv` condition in Scroller.js line 145

```
if (this.state.data[i].date.isSame(targetDate, "day") && this.rlv)
```