* more refactor
* chore: motion support
* chore: tmp test
* test: Hooks
* chore: static function
* tmp of it
* all of it
* mv prefix
* chore: clean up
* chore: clean up
* more test case
* test: all base test
* test: all test case
* init
* refactor: rm notification.open instance related code
* follow up
* refactor: singlton
* test: notification test case
* refactor to destroy
* refactor: message base
* test: part test case
* test: more
* test: more
* test: all test
* chore: clean up
* docs: reorder
* chore: fix lint
* test: fix test case
* chore: add act
* chore: back
* chore: fix style
* test: notification test
* test: more and more
* test: fix more test
* test: index
* test: more & more
* test: fix placement
* test: fix coverage
* chore: clean up
* chore: bundle size
* fix: 17
* chore: more
* test: message
* test: more test
* fix: lint
* test: rm class in static
* chore: clean up
* test: coverage
* chore: fix lint
* feat: use @ant-design/icons@4.0
* feat: use createFromIconfontCN to make site works
* feat: update doc for Icon
* feat: use icon in component Alert
* feat: use icon in component Avatar
* feat: use icon in component Breadcrumb
* feat: use icon in component Button
* feat: use icon in component Cascader
* feat: use icon in component Collapse
* feat: use icon in component Datepicker
* feat: use icon in component Dropdown
* feat: use icon in component Form
* feat: use icon in component Input
* feat: use icon in component InputNumber
* feat: use icon in component Layout
* feat: use icon in component Mention
* feat: use icon in component Message
* feat: use icon in component Modal
* feat: use icon in component Notification
* feat: use icon in component PageHeader
* feat: use icon in component Pagination
* feat: use icon in component Popconfirm
* feat: use icon in component Progress
* feat: use icon in component Rate
* feat: use icon in component Result
* feat: use icon in component Select
* feat: use icon in component Step
* feat: use icon in component Switch
* feat: use icon in component Table
* feat: use icon in component Tab
* feat: use icon in component Tag
* feat: handle rest component which using Icon
* fix: remove unused vars
* feat: use latest alpha ant design icons
* fix: failed test in uploadlist.test.js
* test: update snapshot for icons
* doc: add Icon for site
* doc: use @ant-design/icons in site
* chore: use latest icons
* fix: tslint issue
* fix: test cases
* fix: types for react
* fix: lint rules for import orders
* fix: use @ant-design/icons@4.0.0-alpha.5 to avoid insert css in server render
* fix: eslint error in demo/**.md
* inject antd icons
* update snapshot
* fix site
* doc: update docs
* fix: code snippets icon in site
* feat: use latest @ant-design/icons
* fix: icon props in message
* update snapshots
* update snapshots
* support notification pop up from topLeft or bottomRight or bottomLeft
* update snapshots
* 1. add test
2. update doc
3. support `placement` arguments in `open` method
* update doc
* update doc.