依赖更新 && 构建调整 (#60)

* upgrade dependencies

* 更改所有 saladcss 写法

* fix: 升级依赖导致的样式错误

* fix: build vant css

* use es module when pack && webpack scope hoisting

* fix: vue module version

* delete unused npm script

* fix: build:vant script not work

* fix: webpack config format

* fix: build minify vant.js

* fix: captain ui relative link

docs/examples-docs/waterfall.md

@@ -66,28 +66,26 @@ export default {
 </script>
 
 <style>
-@component-namespace demo {
-  @b waterfall {
-    .waterfall {
-      max-height: 360px;
-      overflow: scroll;
-      border-top: 1px solid #e5e5e5;
-    }
-    .waterfall-item {
-      line-height: 50px;
-      border-bottom: 1px solid #e5e5e5;
-      background: #fff;
-    }
-    .page-desc {
-      padding: 5px 0;
-      line-height: 1.4;
-      font-size: 14px;
-      text-align: center;
-      color: #666;
-    }
-    .van-loading {
-      margin: 10px auto;
-    }
+.demo-waterfall {
+  .waterfall {
+    max-height: 360px;
+    overflow: scroll;
+    border-top: 1px solid #e5e5e5;
+  }
+  .waterfall-item {
+    line-height: 50px;
+    border-bottom: 1px solid #e5e5e5;
+    background: #fff;
+  }
+  .page-desc {
+    padding: 5px 0;
+    line-height: 1.4;
+    font-size: 14px;
+    text-align: center;
+    color: #666;
+  }
+  .van-loading {
+    margin: 10px auto;
   }
 }
 </style>