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/NavigatorIOSExample.js

@@ -60,6 +60,7 @@ var NavigatorIOSExample = React.createClass({
             this.props.navigator.push({
               title: NavigatorIOSExample.title,
               component: NavigatorIOSExample,
+              backButtonTitle: 'Custom Back',
               passProps: {topExampleRoute: this.props.topExampleRoute || this.props.route},
             });
           })}