Add 3.4.0 changelog (#9890)

CHANGELOG.en-US.md

@@ -15,6 +15,23 @@ timeline: true
 
 ---
 
+## 3.4.0
+
+`2018-04-01`
+
+- Tree
+  - 🌟 Added `defaultExpandParent` for expanding parent at first render.
+  - 🌟 Added `disabled` for disabling the whole tree.
+  - 🌟 Added `TreeNode[icon]` to allow setting custom node icon.
+  - 🌟 Optimized the check logic for disabled TreeNode.
+- 🌟 Anchor added `getContainer` for setting the container of scroll content.
+- 🌟 Table added a new less variable `@table-expanded-row-bg`. [#9789](https://github.com/ant-design/ant-design/pull/9789)
+- 🐞 Fixed a less syntax error. [#9832](https://github.com/ant-design/ant-design/pull/9832) [@jojoLockLock](https://github.com/jojoLockLock)
+- 🐞 Fixed `moment.locale` invoking error in LocaleProvider. [#9853](https://github.com/ant-design/ant-design/pull/9853)
+- 🐞 Fixed issue resulting in `style` of WeekPicker not works. [#9848](https://github.com/ant-design/ant-design/issues/9848)
+- 💄 Optimized style of Modal for long contents. [#9592](https://github.com/ant-design/ant-design/pull/9592)
+- 🌟 Added new locale Slovenian.
+
 ## 3.3.3
 
 `2018-03-25`

CHANGELOG.zh-CN.md

@@ -15,6 +15,23 @@ timeline: true
 
 ---
 
+## 3.4.0
+
+`2018-04-01`
+
+- Tree
+  - 🌟 新增 `defaultExpandParent` 用于在第一次渲染时自动展开父节点。
+  - 🌟 新增 `disabled` 用于禁用整棵树。
+  - 🌟 TreeNode 新增 `icon` 用于设置自定义图标。
+  - 🌟 优化了 TreeNode 设置 `disabled` 时的勾选逻辑。
+- 🌟 Anchor 新增 `getCotainer` 用于指定内容滚动的容器。
+- 🌟 Table 新增 less 变量 `@table-expanded-row-bg`。[#9789](https://github.com/ant-design/ant-design/pull/9789)
+- 🐞 修复一处 less 语法错误。[#9832](https://github.com/ant-design/ant-design/pull/9832) [@jojoLockLock](https://github.com/jojoLockLock)
+- 🐞 修复 LocaleProvider 中 moment.locale 调用报错的问题。 [#9853](https://github.com/ant-design/ant-design/pull/9853)
+- 🐞 修复 WeekPicker 的 style 属性不生效的问题。[#9848](https://github.com/ant-design/ant-design/issues/9848)
+- 💄 优化了 Modal 中超长内容的显示。[#9592](https://github.com/ant-design/ant-design/pull/9592)
+- 🌟 新增斯洛维尼亚语。
+
 ## 3.3.3
 
 `2018-03-25`