Modernize docs: remove 'use strict' from docs -- es6 has 'use strict' by default

CONTRIBUTING.md

@@ -180,7 +180,7 @@ However, there are still some styles that the linter cannot pick up.
 #### JavaScript
 
 * Use semicolons;
-* `'use strict';`
+* ES6 standards
 * Prefer `'` over `"`
 * Do not use the optional parameters of `setTimeout` and `setInterval`
 * 80 character line length

docs/CommunicationAndroid.md

@@ -46,7 +46,6 @@ public class MainActivity extends ReactActivity {
 ```
 
 ```
-'use strict';
 
 import React from 'react';
 import {

docs/CommunicationIOS.md

@@ -39,7 +39,6 @@ RCTRootView *rootView = [[RCTRootView alloc] initWithBridge:bridge
 ```
 
 ```
-'use strict';
 
 import React from 'react';
 import {

docs/Contributing.md

@@ -187,7 +187,7 @@ However, there are still some styles that the linter cannot pick up.
 #### JavaScript
 
 * Use semicolons;
-* `'use strict';`
+* ES6 standards
 * Prefer `'` over `"`
 * Do not use the optional parameters of `setTimeout` and `setInterval`
 * 80 character line length

docs/CustomWebViewIOS.md

@@ -151,6 +151,7 @@ To use your custom web view, you'll need to create a class for it. Your class mu
 To get your native component, you must use `requireNativeComponent`: the same as for regular custom components. However, you must pass in an extra third argument, `WebView.extraNativeComponentConfig`. This third argument contains prop types that are only required for native code.
 
 ```js
+
 import React, { Component, PropTypes } from 'react';
 import { WebView, requireNativeComponent, NativeModules } from 'react-native';
 const { CustomWebViewManager } = NativeModules; 
@@ -176,6 +177,7 @@ const RCTCustomWebView = requireNativeComponent(
  CustomWebView,
  WebView.extraNativeComponentConfig
 );
+
 ```
 
 If you want to add custom props to your native component, you can use `nativeConfig.props` on the web view. For iOS, you should also set the `nativeConfig.viewManager` prop with your custom WebView ViewManager as in the example above.

docs/IntegrationWithExistingApps.md

@@ -305,7 +305,6 @@ First, create an empty `index.js` file in the root of your React Native project.
 In your `index.js`, create your component. In our sample here, we will add simple `<Text>` component within a styled `<View>`
 
 ```javascript
-'use strict';
 
 import React from 'react';
 import {
@@ -600,7 +599,6 @@ First, create an empty `index.js` file in the root of your React Native project.
 In your `index.js`, create your component. In our sample here, we will add simple `<Text>` component within a styled `<View>`:
 
 ```javascript
-'use strict';
 
 import React from 'react';
 import {

docs/NativeModulesAndroid.md

@@ -144,7 +144,6 @@ protected List<ReactPackage> getPackages() {
 To make it simpler to access your new functionality from JavaScript, it is common to wrap the native module in a JavaScript module. This is not necessary but saves the consumers of your library the need to pull it off of `NativeModules` each time. This JavaScript file also becomes a good location for you to add any JavaScript side functionality.
 
 ```js
-'use strict';
 /**
  * This exposes the native ToastExample module as a JS module. This has a
  * function 'show' which takes the following parameters: