Updates from Wed 18 Mar

- [ReactNative] Add AsyncStorageTest | Spencer Ahrens
- [ReactNative] Add timers integration test | Spencer Ahrens
- [ReactNative] Remove ExpandingText | Tadeu Zagallo
- [TouchableHighlight] Preserve underlay style when restoring inactive props | Christopher Chedeau
- clean flow errors in react-native-github | Basil Hosmer
- [ReactNative] Sort React Native exports into two groups, Components and APIs | Christopher Chedeau
- [ReactNative] Rename Slider to SliderIOS | Tadeu Zagallo
- [react_native] JS files from D1919491: Improve JS logging | Martin Kosiba
- [ReactNative] Add TimerExample | Spencer Ahrens
- [RFC][ReactNative] increase timer resolution | Spencer Ahrens
- [ReactNative] Strip prefixes from NativeModules keys | Spencer Ahrens
- [ReactNative] Small docs cleanup in ActivityIndicatorIOS and DatePickerIOS | Christopher Chedeau
- [ReactNative] Improvements on perf measurement output | Jing Chen
- [ReactNative] Clean up Touchable PropTypes | Christopher Chedeau
- [ReactKit] Fail tests when redbox shows up | Alex Kotliarskyi

Libraries/Components/ListView/ListView.js

@@ -7,7 +7,7 @@
 
 var ListViewDataSource = require('ListViewDataSource');
 var React = require('React');
-var RCTUIManager = require('NativeModules').RCTUIManager;
+var RCTUIManager = require('NativeModules').UIManager;
 var ScrollView = require('ScrollView');
 var ScrollResponder = require('ScrollResponder');
 var StaticRenderer = require('StaticRenderer');

Libraries/Components/ListView/ListViewDataSource.js

@@ -215,9 +215,10 @@ class ListViewDataSource {
   /**
    * @param {number} index
    *
-   * Gets the rowID at index provided if the dataSource arrays were flattened
+   * Gets the rowID at index provided if the dataSource arrays were flattened,
+   * or null of out of range indexes.
    */
-  getRowIDForFlatIndex(index: number): string {
+  getRowIDForFlatIndex(index: number): ?string {
     var accessIndex = index;
     for (var ii = 0; ii < this.sectionIdentities.length; ii++) {
       if (accessIndex >= this.rowIdentities[ii].length) {
@@ -226,14 +227,16 @@ class ListViewDataSource {
         return this.rowIdentities[ii][accessIndex];
       }
     }
+    return null;
   }
 
   /**
    * @param {number} index
    *
-   * Gets the sectionID at index provided if the dataSource arrays were flattened
+   * Gets the sectionID at index provided if the dataSource arrays were flattened,
+   * or null for out of range indexes.
    */
-  getSectionIDForFlatIndex(index: number): string {
+  getSectionIDForFlatIndex(index: number): ?string {
     var accessIndex = index;
     for (var ii = 0; ii < this.sectionIdentities.length; ii++) {
       if (accessIndex >= this.rowIdentities[ii].length) {
@@ -242,6 +245,7 @@ class ListViewDataSource {
         return this.sectionIdentities[ii];
       }
     }
+    return null;
   }
 
   /**