title: How to set alert box title in React-Native's alert?
body: <p>I cannot set the title of an Alert box with React-Native</p>
  
  <pre><code>import React, { Component } from 'react';
  import ReactNative,{
    StyleSheet,
    Text,
    View,
    Alert,
  } from 'react-native';
  </code></pre>
  
  <p>...</p>
  
  <pre><code>alert("myTitle","my message");
  </code></pre>
  
  <p>Title shows as "Alert" instead of as "myTitle"</p>