Merge branch 'feature/migrate_wecht_msg' into debug

controllers/admin_wx.go

@@ -158,7 +158,7 @@ func (c *AdminWxController) BindMobile()  {
 	}
 	openId := info["open_id"]
 	unionId := info["union_id"]
-	if openId == "" || unionId == "" {
+	if openId == "" {
 		c.FailWithMessage("授权信息不存在", "授权信息不存在")
 		return
 	}