fix prepublish script

scripts/prenpm.js

@@ -1,11 +1,16 @@
 var fs = require('fs');
 var cwd = process.cwd();
 var path = require('path');
+var pkg = require('../package');
+
 var originalIndex = fs.readFileSync(path.join(cwd, 'index.js'), 'utf-8');
 var newIndex = originalIndex
   .replace(/\/components\//g, '/')
   .replace("require('./package.json').version", "'" + require('../package.json').version + "'")
   .replace("require('./style/index.less')", "require('./index.css')");
 fs.writeFileSync(path.join(cwd, 'lib/index.js'), newIndex, 'utf-8');
-fs.createReadStream(path.join(cwd, 'dist/antd.css')).pipe(fs.createWriteStream(path.join(cwd, 'lib/index.css')));
-console.log('prenpm done');
+
+var antdCss = path.join(cwd, 'dist/' + pkg.name + '-' + pkg.version + '.css');
+fs.createReadStream(antdCss)
+  .pipe(fs.createWriteStream(path.join(cwd, 'lib/index.css')));
+console.log('prenpm done');

webpack.config.production.js

@@ -5,9 +5,6 @@ var webpack = require("webpack");
 var ExtractTextPlugin = require("extract-text-webpack-plugin");
 var config = require("./webpack.config.js");
 
-config.plugins = [
-  new ExtractTextPlugin('[name].css')
-];
 delete config.entry.demo;
 delete config.entry[pkg.name];