Added webpack build config

webpack.base.config.js

@@ -0,0 +1,26 @@
+module.exports = {
+  entry: './src/index.js',
+  output: {
+    path: './dist',
+    publicPath: 'dist/',
+    filename: 'vue-modal.js'
+  },
+  module: {
+    loaders: [
+      {
+        test: /\.vue$/,
+        loader: 'vue'
+      },
+      {
+        test: /\.js$/,
+        loader: 'babel!eslint',
+        exclude: /node_modules/
+      }
+    ]
+  },
+  vue: {
+    loaders: {
+      js: 'babel!eslint'
+    }
+  }
+};