docs: update changelog

CHANGELOG.en-US.md

@@ -551,8 +551,6 @@ Component Fixes / Enhancements:
 
 `2018-12-16`
 
-### Synchronize with antd 3.10.x
-
 - 🔥🔥🔥 replaced font icons with svg icons which bring benefits below:：
   - Complete offline usage of icon, no dependency of alipay cdn font icon file and no more empty square during downloading than no need to deploy icon font files locally either.
   - Much more display accuracy in lower-level screens.

CHANGELOG.zh-CN.md

@@ -554,8 +554,6 @@
 
 `2018-12-16`
 
-### 与 antd 3.10.x 同步
-
 - 🔥🔥🔥 使用了 svg 图标替换了原先的 font 图标，从而带来了以下优势：
   - 可以离线化使用，不需要从支付宝 cdn 下载字体文件，图标不会因为网络问题呈现方块，也无需字体文件本地部署。
   - 在低端设备上 svg 有更好的清晰度。

antdv-demo

@@ -1 +1 @@
-Subproject commit 3ad62e059028e716305b9d88ca1bbf9e4d79118c
+Subproject commit 4e957c28ba982dd34894e72f9b00e513e26f1b5d

components/vc-form/src/createFieldsStore.jsx

@@ -29,7 +29,7 @@ class FieldsStore {
     return flattenFields(
       fields,
       path => validFieldsName.indexOf(path) >= 0,
-      'You cannot set a form field before rendering a field associated with the value.',
+      `You cannot set a form field before rendering a field associated with the value. You can use \`getFieldDecorator(id, options)\` instead \`v-decorator="[id, options]"\` to register it before render.`,
     );
   }