webpack setup change

Author: Vinoth Kumar V

package.json

@@ -1,8 +1,9 @@
 {
   "name": "vue-tiny-tabs",
-  "version": "1.0.4",
+  "version": "1.0.5",
   "main": "src/plugin.js",
   "scripts": {
+    "dev": "cross-env NODE_ENV=development webpack-dev-server --open --hot",
     "build": "cross-env NODE_ENV=production webpack --progress --hide-modules"
   },
   "author": "Vinoth",