If externals build in webpack for amd #622

Author: xiaolin

webpack.build.js

@@ -36,13 +36,13 @@ const jsOutput = Object.assign({}, config, {
     react: {
       commonjs: 'react',
       commonjs2: 'react',
-      amd: 'React',
+      amd: 'react',
       root: 'React',
     },
     'react-dom': {
       commonjs: 'react-dom',
       commonjs2: 'react-dom',
-      amd: 'ReactDOM',
+      amd: 'react-dom',
       root: 'ReactDOM',
     },
   },