翻译完change-log

public/docs/ts/latest/guide/change-log.jade

@@ -9,23 +9,47 @@ block includes
 
   ## Updated to Angular 4.0. Documentation for Angular 2.x can be found at [v2.angular.io](https://v2.angular.io).
   
+  ## 更新到 Angular 4.0 。Angular 2.x 的文档在 [v2.angular.io](https://v2.angular.io) 。
+
   ## All mention of moduleId removed. "Component relative paths" cookbook deleted (2017-03-13)
+  
+  ## 移除了所有的moduleId引用。移除了"组件相对路径" 的烹饪书。(2017-03-13)
+  
   We added a new SystemJS plugin (systemjs-angular-loader.js) to our recommended SystemJS configuration.
   This plugin dynamically converts "component-relative" paths in templateUrl and styleUrls to "absolute paths" for you.
   
+  我们往建议的SystemJS配置中新增了一个SystemJS插件 (systemjs-angular-loader.js) 。
+  这个插件可以帮你把templateUrl和styleUrls中的组件相对路径动态转换为绝对路径。
+
   We strongly encourage you to only write component-relative paths.
   That is the only form of URL discussed in these docs. You no longer need to write @Component({ moduleId: module.id }), nor should you.
   
+  我们强烈建议你只写组件相对路径。
+  这也是本文档中所使用的唯一形式。你不必再写`@Component({ moduleId: module.id })`，而且也不应该再这么写。
+
   ## NEW: Downloadable examples for each guide (2017-02-28)
+  
+  ## 新增：每篇指南都增加了可下载的范例程序 (2017-02-28)
+  
   Now you can download the sample code for any guide and run it locally.
   Look for the new download links next to the "live example" links.
   
+  现在你可以为任何一篇指南下载范例程序，并且在本地运行它了。
+  请在"在线例子"的链接后面查找新的下载链接。
+
   ## Template Syntax/Structural Directives: refreshed (2017-02-06)
+  
+  ## 模板语法/结构型指令：更新了 (2017-02-06)
+  
   The [_Template-Syntax_](template-syntax.html) and [_Structural Directives_](structural-directives.html)
   guides were significantly revised for clarity, accuracy, and current recommended practices.
   Discusses `<ng-container>`.
   Revised samples are more clear and cover all topics discussed.
   
+  对[模板语法](template-syntax.html) 和 [结构型指令](structural-directives.html)这两篇指南做了大幅修改，来让它们更加清晰、准确，并符合当前的最佳实践。
+  讨论了`<ng-container>`。
+  修改了例子，来让它们更清晰，并且覆盖了所有讨论到的主题。
+  
   ## NEW: Samples re-structured with `src/` folder (2017-02-02)
   
   ## 新增：调整了范例程序的结构，移到了`src/`文件夹 (2017-02-02)