message: Changed android back handler
diff: import React from 'react';
  import {StyleSheet, TouchableHighlight, Text, View, Animated} from 'react-native';
  import Svg, {Path} from 'react-native-svg';
  -import {NavigationBackAndroid} from 'navigation-react-native';
  +import {NavigationBackHandler} from 'navigation-react-native';
  export default ({activeTab, goToPage, containerWidth, scrollValue, stateNavigator}) => {
  const tabUnderlineStyle = {
  @@ -24,7 +24,7 @@ export default ({activeTab, goToPage, containerWidth, scrollValue, stateNavigato
  }
  return (
  <View>
  - <NavigationBackAndroid stateNavigator={stateNavigator} navigating={navigating} />
  + <NavigationBackHandler stateNavigator={stateNavigator} navigating={navigating} />
  <View style={styles.banner}>
  <Text style={styles.title}>Home</Text>
  </View>
  