* feat(checker): new component checker

* test(checker): init checker test

* refactor(demo): add checker

* docs(checker): init checker docs

* refactor(checker): remove console

* test(checker): fix radio test

* fix(checker): radio & checkbox type active condition

* fix(checker): radio condition error

* refactor(example): checker router component path err

* test(checker): fix test

* feat(mixins): add new parent minxin creator

* feat(sticky): init sticky component

* feat(scroll-nav-bar): init logic

* feat(scroll-nav): init logic

* feat(modules): add sticky, scroll-nav, scroll-nav-bar

* test(sticky): init tests

* test(scroll-bar-bar): init tests

* test(scroll-nav): init tests

* docs(scroll-nav-bar): init doc

* docs(sticky): init doc

* docs(scroll-nav): init docs

* docs(entry): add sticky, scroll-nav-bar, scroll-nav entries

* chore(package.json): better-scroll to 1.12.4

* chore(yarn): yarn update

* feat(slide): support listenScroll

* feat(tabs): add tabs feature

* docs(tabs): tabs's docs

* test(tabs): tabs' unit case

* chore(tabs): the examples of tabs

* feat(ImagePreview): init

#198

* test(image-preview): test cases

* docs(image-preview): finish docs

* [init] toolbar

* update(demo): toolbar

* update(doc): toolbar

* test: toolbar unit

* init

* drawer item prop

* drawer logic

* lint

* scroll add destroy

* init drawer logic

* test

* clean code

* test: done drawer

* drawer check

* drawer support get value default

* update(demo): drawer log

* Clean code

* add drawer demo & doc

* <add>(date-picker)

* <add>(date-picker): example

* <add>(date-picker): value

* <update> value support Date type

* <update> event

* <add> test

* <update> test

* <update> expample

* <add> column config

* [update] column config

* [fix] min max

* [add] event param date

* [fix] max date

* [fix] memory

* [add] support Array type

* [fix] cascade column number reduce bug

* [fix] value change

* [update] example

* [add] doc

* [add] mixin: basic-picker + picker

* [update] example

* [add] test

* [update] doc + remove value-change event

* [update] variable name

* init logic

* form validate return valid value

* fix issue #123

* update(doc): location hash decode

* form basic

* fix ssr

* validator test

* form style

* ref form

* validator: rule to rules

* ref form

* validator: for to model

* update(doc&demo): add form

* validator: for to model

* eslint

* optimize form&validator

* handlerValidateRule condition check

* form: new-model to immediate-validate

* form field model to modelKey

* support json view

* fix form-item modelkey

* finish swipe & swipe-item component

* optimize code

* add swipe demo

* optimize code and finish demo

* add unit test of swipe

* do some unit test of swipe component

* optimize the unit test and source code of swipe component

* optimize the unit test of swipe component

* optimize the unit test of swipe component

* finish swipe.md and optimize some code

* support ssr

* change val to value & transform data to specific file

* close vconsole

* <add>(select)

* <add>(select): test

* <add>(select): doc

* <update>(select): auto-pop, change

* support radio component

* support upload component

* upgrade checkbox-group component