title: RCTRefreshControl may only be managed by a UITablewViewController
body: <p>I'm getting the following ugly error while trying to implement a RefreshControl on a ScrollView in my react native application:</p>
  
  <p><a href="https://i.stack.imgur.com/bz8Oz.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/bz8Oz.png" alt="refreshControl error"></a></p>
  
  <p>Here's what I'm rendering: </p>
  
  <pre><code>return (
    &lt;View style={styles.container}&gt;
      &lt;ScrollView
        refreshControl={
          &lt;RefreshControl
            refreshing={this.state.refreshing}
            onRefresh={this._onRefresh}&gt;&lt;/RefreshControl&gt;}
        style={styles.scrollView}&gt;
        {renderFeedItems()}
      &lt;/ScrollView&gt;
    &lt;/View&gt;
  );
  </code></pre>
  
  <p>Any ideas?</p>
  
  <pre><code>"react-native": "^0.21.0"
  </code></pre>