changelog for 2.4.9 (#13182)

* changelog for 2.4.9

* update changelog

* update changelog

* update

* update

CHANGELOG.en-US.md

 ## Changelog
 
+### 2.4.9
+
+*2018-10-26*
+
+- The parameter of Form's  `clearValidate`  supports string, #12990 (by @codinglobster)
+- Added type attribute for Badge, #12991
+- Users can use scoped-slot to customize table column header #13012 (by @ivanseidel)
+- Fixed the input box of Select unable to type text under IE, #13034 (by @GaliMU)
+- Select option does not wrap when space is enough, #12329 (by @akki-jat)
+- When dropdown list of Select is expanded, the arrow icon will also display correctly, #12353 (by @firesh)
+- Fixed that the size attribute of Select does not work, #13070
+- Select multiple values can be cleared, #13049 (by @ZSkycat)
+- Fixed the last TabNav unable be deleted, #13039
+- Fixed that TabNav label is not displayed correctly, #13178
+- Added title slot for Alert, #13082 (by @Kingwl)
+- Fixed an issue where the tooltip content in Table was incorrect, #13159 (by @elfman)
+- Optimize the animation of Upload when file is deleted, #12987
+- Adjusted style of InputNumber when control button is not displayed, #13052
+
 ### 2.4.8
 
 - Not displaying outline when Switch is focused, #12771

CHANGELOG.es.md

 ## Changelog
 
+### 2.4.9
+
+*2018-10-26*
+
+- The parameter of Form's  `clearValidate`  supports string, #12990 (by @codinglobster)
+- Added type attribute for Badge, #12991
+- Users can use scoped-slot to customize table column header #13012 (by @ivanseidel)
+- Fixed the input box of Select unable to type text under IE, #13034 (by @GaliMU)
+- Select option does not wrap when space is enough, #12329 (by @akki-jat)
+- When dropdown list of Select is expanded, the arrow icon will also display correctly, #12353 (by @firesh)
+- Fixed that the size attribute of Select does not work, #13070
+- Select multiple values can be cleared, #13049 (by @ZSkycat)
+- Fixed the last TabNav unable be deleted, #13039
+- Fixed that TabNav label is not displayed correctly, #13178
+- Added title slot for Alert, #13082 (by @Kingwl)
+- Fixed an issue where the tooltip content in Table was incorrect, #13159 (by @elfman)
+- Optimize the animation of Upload when file is deleted, #12987
+- Adjusted style of InputNumber when control button is not displayed, #13052
+
 ### 2.4.8
 
 - No se muestra el contorno cuando Switch está enfocado, #12771

CHANGELOG.zh-CN.md

 ## 更新日志
 
+### 2.4.9
+
+*2018-10-26*
+
+- Form 组件 clearValidate 方法参数支持字符串，#12990 （by @codinglobster）
+- Badge 新增 type 属性，#12991
+- 用户可以使用 scoped-slot 来自定义表头，#13012（by @ivanseidel）
+- 修复 IE 下 Select 输入框不能输入的问题，#13034（by @GaliMU）
+- Select 多选时，选项不换行，#12329 （by @akki-jat）
+- Select 下拉列表展开后，箭头图标也可以正确显示，#12353（by @firesh） 
+- 修复 Select 的 size 属性不生效的问题，#13070
+- 多选时可以清除 Select 已选中的值，#13049（by @ZSkycat）
+- 修复最后一个 TabNav 不能删除的问题，#13039
+- 修复 TabNav 中 label 显示不正确的问题，#13178
+- Alert 新增 title slot，#13082（by @Kingwl）
+- 修复 Table 中的 tooltip 内容不正确的问题，#13159（by @elfman）
+- 优化 Upload 文件列表删除时的动画，#12987
+- 当 InputNumber 控制按钮不显示时，调整了边距，#13052
+
 ### 2.4.8
 
 - Switch 聚焦时不显示轮廓，#12771