2015-02-07 updates

- Random little fixes | Andres Suarez
- Add backButtonTitle to Navigator | Nick Poulden
- [react-pacakger] Ignore malformed package.json | Amjad Masad
- Renamed hasMove to hasMark | Rich Seymour
- Update XMLHttpRequest.ios.js | Nick Poulden
- Warn about missing dependencies for issue #16 | Andrew McCloud

Examples/UIExplorer/UIExplorerList.js

@@ -45,10 +45,10 @@ var UIExplorerList = React.createClass({
     );
   },
 
-  _renderRow: function(example) {
+  _renderRow: function(example, i) {
     invariant(example.title, 'Example must provide a title.');
     return (
-      <View>
+      <View key={i}>
         <TouchableHighlight onPress={() => this._onPressRow(example)}>
           <View style={styles.row}>
             <Text style={styles.rowTitleText}>