* 修复 Mock 导致请求丢失 Cookie 的问题

修复 Mock 导致 Cookie 丢失的问题，只有在 XHR.open() 周期时，自定义的 withCredentials 会被挂载，此时检查是否是未被拦截的 xhr，并挂载自定义的 withCredentials ，无则默认为 false

* fix[tagsView]:fixed visited view move to currentTag

* edit the scroll regular friendly

* tweak

cssnano/cssnano#643

…1267)

* feat: perfect migrate to @vue/cli-service, upgrade vue babel version

1. update to @vue/cli-service@3.0.5, @babel/core@7.0.0
2. use vue-cli service replace config file in build/ and config/
3. upgrade vue and babel configuration
4. solve the svg-sprite config problem #980

refs: #932 #1087  #980 #1056

* fix: fix breadcrumb dependency

* fix: fix index template and static assets load with vue-cli 3

* fix: fix import driver.js in guide page

* refactor(mock): mak mock api compatible with both web-view and webpack server

1. 把 Mockjs 功能移到 server 端中间件，同时也兼容前端直接劫持 XHR
2. dev 环境下默认作为 express 中间件通过 webpack server 提供 mock api
3. prod 构建时，默认在前端用 Mockjs 劫持 XHR

benefits:
  - dev 开发调试时能直接看到 XHR 请求，方便调试网络，能和后端对接联调
  - 避开在开发时因为 Mockjs 引起的网络 bug
  - prod 构建时劫持 XHR，保证本项目的 Github Pages preview 能正常显示 (逻辑和 error-log 一样)
  - 前后台使用的 mock 是同一份代码，不会增加维护负担

ref: [#562](#562 (comment))

* update requires the lowest version of node

* add favicon

* fix(TreeTable): fix `Array.prototype.concat` on custom-tree-table page

… when user clicked avatar (#1304)

# Conflicts:
#	src/store/index.js
#	src/store/modules/app.js

1

# Conflicts:
#	.env.development
#	.env.production
#	.env.staging
#	build/index.js
#	jest.config.js
#	mock/index.js
#	mock/user.js
#	package.json
#	src/components/ErrorLog/index.vue
#	src/components/RightPanel/index.vue
#	src/components/ThemePicker/index.vue
#	src/components/Upload/singleImage.vue
#	src/layout/Layout.vue
#	src/layout/components/AppMain.vue
#	src/layout/components/Navbar.vue
#	src/layout/components/Settings/index.vue
#	src/layout/components/Sidebar/index.vue
#	src/router/index.js
#	src/router/modules/charts.js
#	src/router/modules/components.js
#	src/router/modules/nested.js
#	src/router/modules/table.js
#	src/router/modules/tree-table.js
#	src/settings.js
#	src/store/index.js
#	src/store/modules/app.js
#	src/store/modules/settings.js
#	src/styles/element-variables.scss
#	src/utils/request.js
#	src/views/components-demo/countTo.vue
#	src/views/components-demo/markdown.vue
#	src/views/dashboard/admin/index.vue
#	src/views/example/components/ArticleDetail.vue
#	src/views/example/list.vue
#	src/views/login/index.vue
#	src/views/table/complexTable.vue
#	src/views/table/dragTable.vue
#	src/views/table/inlineEditTable.vue
#	src/views/tree-table/custom/index.vue
#	src/views/tree-table/index.vue
#	vue.config.js