改变打包出来的amd模块，增加amd模块的名字 (#28)

* add amd name

build/webpack.build.js

@@ -9,7 +9,8 @@ config.entry = {
 config.output = {
   filename: './lib/[name].js',
   library: 'vant',
-  libraryTarget: 'umd'
+  libraryTarget: 'umd',
+  umdNamedDefine: true
 };
 
 config.externals = {

build/webpack.components.js

@@ -18,7 +18,8 @@ config.externals = {
 config.output = {
   path: path.join(__dirname, '../lib'),
   filename: '[name].js',
-  libraryTarget: 'umd'
+  libraryTarget: 'umd',
+  umdNamedDefine: true
 };
 
 module.exports = config;

build/webpack.config.dev.js

@@ -39,7 +39,8 @@ module.exports = {
   output: {
     path: path.join(__dirname, '../docs/dist'),
     publicPath: '/',
-    filename: '[name].js'
+    filename: '[name].js',
+    umdNamedDefine: true
   },
   devServer: {
     historyApiFallback: {

build/webpack.config.prod.js

@@ -7,7 +7,8 @@ module.exports = merge(devConfig, {
   output: {
     path: path.join(__dirname, '../docs/dist'),
     publicPath: '/zanui/vue',
-    filename: '[name].[hash:8].js'
+    filename: '[name].[hash:8].js',
+    umdNamedDefine: true
   },
   devtool: false,
   plugins: [