update the master branch to the latest

src/components/tabs/pane.vue

@@ -0,0 +1,80 @@
+<template>
+    <div :class="prefixCls" v-if="show" :style="contentStyle"><slot></slot></div>
+</template>
+<script>
+    const prefixCls = 'ivu-tabs-tabpane';
+
+    export default {
+        name: 'TabPane',
+        inject: ['TabsInstance'],
+        props: {
+            name: {
+                type: String
+            },
+            label: {
+                type: [String, Function],
+                default: ''
+            },
+            icon: {
+                type: String
+            },
+            disabled: {
+                type: Boolean,
+                default: false
+            },
+            closable: {
+                type: Boolean,
+                default: null
+            },
+            // Tabs 嵌套时，用 tab 区分层级，指向对应的 Tabs 的 name
+            tab: {
+                type: String
+            },
+            // 在 TabPane 使用 v-if 时，并不会按照预先的顺序渲染，这时可设置 index，并从小到大排序
+            // 数值需大于 0
+            index: {
+                type: Number
+            }
+        },
+        data () {
+            return {
+                prefixCls: prefixCls,
+                show: true,
+                currentName: this.name
+            };
+        },
+        computed: {
+            contentStyle () {
+                return {
+                    visibility: this.TabsInstance.activeKey !== this.currentName ? 'hidden' : 'visible'
+                };
+            }
+        },
+        methods: {
+            updateNav () {
+                this.TabsInstance.updateNav();
+            }
+        },
+        watch: {
+            name (val) {
+                this.currentName = val;
+                this.updateNav();
+            },
+            label () {
+                this.updateNav();
+            },
+            icon () {
+                this.updateNav();
+            },
+            disabled () {
+                this.updateNav();
+            }
+        },
+        mounted () {
+            this.updateNav();
+        },
+        destroyed () {
+            this.updateNav();
+        }
+    };
+</script>