Fix small errors in webpack.prod.conf (vuejs-templates#897)

* Update vue-loader link (vuejs-templates#886)

* Remove unused count variable in webpack.prod.conf.js

Author: robwierzbowski

template/build/webpack.prod.conf.js

@@ -75,7 +75,7 @@ const webpackConfig = merge(baseWebpackConfig, {
     // split vendor js into its own file
     new webpack.optimize.CommonsChunkPlugin({
       name: 'vendor',
-      minChunks: function (module, count) {
+      minChunks: function (module) {
         // any required modules inside node_modules are extracted to vendor
         return (
           module.resource &&