chore(release): 1.9.0 [skip ci]

# [1.9.0](https://github.com/d2-projects/d2-admin/compare/v1.8.5...v1.9.0) (2020-04-21)

### Features

* **demo:** 更新色盘样式 ([32421fe](32421fe351))
* 移除无用的 __filename 设置 ([c19ff32](c19ff32287))
* **message:** 增强 message 提示的配色对比 ([c36fd8e](c36fd8e5a2)), closes [#243](https://github.com/d2-projects/d2-admin/issues/243)
* 移除无用的 d2-crud v1 提示 ([a494560](a494560c8a))
* **element demo:** 移除内置的 elementUI demo ([8b37d3e](8b37d3e77f))
* **search panel:** 关闭搜索面板中列表容器的阴影 ([eb08ca1](eb08ca19d4))

package.json

@@ -1,6 +1,6 @@
 {
   "name": "d2-admin",
-  "version": "1.8.5",
+  "version": "1.9.0",
   "scripts": {
     "serve": "vue-cli-service serve --open",
     "start": "npm run serve",