Ember.js v2.2.0-beta.2 发布，此版本主要是 bug 修复，更新内容如下： #12445 [BUGFIX] Ensure rest arg positionalParams can be supplied as hash arguments. #12456 [BUGFIX] Allow usage of bound properties in {{link-to}} for bubbles, preventDefault, target, replace, and disabledWhen. #12503 [BUGFIX] Add assertions for tagless components that include event handler functions (i.e. click). #12464 [BUGFIX] Ember.String.htmlSafe() should return a instance of SafeString for null / undefined. #12463 [BUGFIX] Fix uglification introduced bug with super wrapping. #12519 [BUGFIX] Ensure closure actions are wrapped in a run loop. 下载：https://github.com/emberjs/ember.js/archive/v2.2.0-beta.2.zip。 Ember.js v2.2.0-beta.2 发布，JavaScript 框架下载地址
