I am using v4.2.0 and i am getting issue with drawer because drawer is not opening and closing on swipe gesture. Please fix it asap and revert me

### Version
Tell us which versions you are using:

- react-native-router-flux v4.?.?
- react v16.?.?
- react-native v0.?.?

### Expected behaviour

### Actual behaviour

### Steps to reproduce
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### Reproducible Demo

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