[new feature] Toast support position prop (#244)

* [bugfix] Checkbox border render error in weixin browser

* [bugfix] TreeSelect dependency path error

* [bugfix] Swipe should clear autoplay timer when destroyed

* [bugfix] Optimize component dependency analyze when build style entry

* merge

* update yarn.lock

* update README.md

* update README.md

* update README.md

* update README.md

* update README.md

* [Doc] add more badges in README.md

* update README.md

* [bugfix] Address & Contact list style

* fix: contact test cases

* [bugfix] popup style missing when build style entry

* [bugfix] Search: onSearch event arguments missing

* [Doc] add demo pages

* update zan-doc@0.3.7

* fix: build entry error

* [Doc] add goods demo

* [bugfix] button primary background color

* [Doc] update doc detail

* [new feature] Coupon add 'showExchangeBar' prop && add empty style

* [new feature] Toast support `position` prop

* [new feature] Tabbar add 'info' prop

packages/tabbar-item/index.vue

@@ -2,7 +2,9 @@
   <div :class="['van-tabbar-item', { 'van-tabbar-item--active': active }]" @click="onClick">
     <div :class="['van-tabbar-item__icon', { 'van-tabbar-item__icon-dot': dot }]">
       <slot name="icon">
-        <van-icon v-if="icon" :name="icon" />
+        <van-icon v-if="icon" :name="icon">
+          <div v-if="info" class="van-tabbar-item__info">{{ info }}</div>
+        </van-icon>
       </slot>
     </div>
     <div class="van-tabbar-item__text">
@@ -23,7 +25,8 @@ export default {
 
   props: {
     icon: String,
-    dot: Boolean
+    dot: Boolean,
+    info: String
   },
 
   data() {