* 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
* init
* number format
* add Countdown
* ⚡ Try something ts stuff
* move out Countdown
* add format
* support countdown
* add prefix & suffix
* Move Number to Statistic
* adjust ts
* clean up
* roll back of lodash
* update doc & style
* variable of the less style
* add demo test
* full coverage
* hide title if not need
* update snapshot
* update accessiblity
* update color
* stop countdown when time is out
* formatTimeStr adjust
* use reset class
* add miss tab index
* update doc
* update title prop & snapshot
* rm additional aria. It's over design
* use card sample on unit demo
* sfc
* adjust demo
