[bugfix] Dialog should reset button text when showed (#278)

* [bugfix] CouponList always show empty info

* [bugfix] add click feedback of buttons in components

* [Doc] add custom theme document

* [new feature] Notice bar support more props

* [bugfix] PullRefresh test cases

* [bugfix] unused NoticeBar style

* [bugfix] Swipe width calc error

* [Doc] english document of all action components

* [Doc] change document site path to /zanui/vant

* [Doc] fix

* [bugfix] uploader style error

* [bugfix] tabs document demo

* [new feature] Cell support vue-router target route

* [bugfix] add cell test cases

* update yarn.lock

* [bugfix] Tabbar cann't display info when use icon slot

* [Doc] update document title

* [bugfix] Dialog should reset button text when showed

* [new feature] CouponList add showCloseButton prop

docs/examples-docs/zh-CN/coupon.md

@@ -157,6 +157,7 @@ export default {
 | exchangeButtonText | 兑换按钮文字 | `String` | `兑换` | - |
 | exchangeButtonDisabled | 是否禁用兑换按钮 | `Boolean` | `false` | - |
 | displayedCouponIndex | 滚动至特定优惠券位置 | `Number` | - | - |
+| showCloseButton | 是否显示列表底部按钮 | `Boolean` | `true` | - |
 | closeButtonText | 列表底部按钮文字 | `String` | 不使用优惠 | - |
 | disabledListTitle | 不可用券列表标题 | `String` | 不可用优惠 | - |
 | inputPlaceholder | 输入框文字提示 | `String` | 请输入优惠码 | - |