* [add]{input.vue} reverse prop for input

* [update]{input.vue} pwdVisible and eyeClass logic

* [update] {input.vue} eye logic

* [update] {input.vue} input example

* [update] input.vue

* [feat] cascade-picker: aync

* [test]

* [feat]picker-based: subtitle

* feat(popups): use v-model to toggle

* [optimize]: abstract visibilityMixin and popupMixin

* fix input append prepend style

* fix issue #167

* create-api params check

* add istanbul ignore

* async validator init

* form async validate

* update(demo): validator example

* fix form show error msg when layout is standard

* validator async validate

* update(demo): validator async validate

* update(demo): set global Promise

* util add cb2PromiseWithResolve

* ad util debounce

* form pending state

* validator validating & validated

* validator only async validate trigger validating event

* fix upload should watch value change

* debounce support initValue as result

* form async validate

* update(test): form async validate tests

* update(demo): form add async cases

* update(doc): validator async

* validator: validate cb with valid argument

* validate debounce time check

* update(doc): form async validate

* form event name

* update(doc): form sync example

* fix form submit & reset event

* update(test): form submit

* validator: support function rule & validated event

* update(doc): validator

* update(test): validator async

* form adapt validator

* update(test): validator content test

* validator: clean code

* validator-rules len

* update(doc): validator async

* update(test): validator

* update(test): validator

* add classic and fresh style

* clean code