Changelog: update for 2.3.1 (#10437)

CHANGELOG.en-US.md

 ## Changelog
 
+### 2.3.1
+
+*2018-03-29*
+
+- Fixed a regression that `type` of Input is not passed down to the native input element, #10415
+- Added `blur` method for Select, #10416
+
 ### 2.3.0 Diamond
 
 *2018-03-28*

CHANGELOG.es.md

 ## Changelog
 
+### 2.3.1
+
+*2018-03-29*
+
+- Fixed a regression that `type` of Input is not passed down to the native input element, #10415
+- Added `blur` method for Select, #10416
+
 ### 2.3.0 Diamond
 
 *2018-03-28*

CHANGELOG.zh-CN.md

 ## 更新日志
 
+### 2.3.1
+
+*2018-03-29*
+
+- 修复 Input 的 `type` 属性未传递至原生 input 元素的问题，#10415
+- 新增 Select 的 `blur` 方法，#10416
+
 ### 2.3.0 Diamond
 
 *2018-03-28*

examples/docs/en-US/tree.md

@@ -1177,8 +1177,8 @@ You can drag and drop Tree nodes by adding a `draggable` attribute.
 | indent                | horizontal indentation of nodes in adjacent levels in pixels | number                     | —    | 16 |
 | lazy                  | whether to lazy load leaf node, used with `load` attribute  | boolean                     | —    | false |
 | draggable             | whether enable tree nodes drag and drop | boolean            | —    | false |
-| allow-drag            | this function will be executed before dragging a node. if return `false`, the node can not be drag.  | Function(node)  | —  | —  |
-| allow-drop            | this function will be executed when dragging enter a node. if return `false`, dragging node can not be drop at the node. | Function(draggingNode, dropNode)  | —    | —     |
+| allow-drag            | this function will be executed before dragging a node. If `false` is returned, the node can not be dragged | Function(node)  | —  | —  |
+| allow-drop            | this function will be executed before the dragging node is dropped. If `false` is returned, the dragging node can not be dropped at the target node | Function(draggingNode, dropNode)  | —    | —     |
 
 ### props
 | Attribute | Description                              | Type   | Accepted Values | Default |