added build and dev commands for npm run

Author: mroote

ui/package.json

@@ -4,7 +4,8 @@
   "description": "Factorio Mod Manager UI",
   "main": "index.js",
   "scripts": {
-    "build": "NODE_ENV=production ./node_modules/webpack/bin/webpack.js -w --progress --profile --colors",
+    "build": "NODE_ENV=production ./node_modules/webpack/bin/webpack.js --progress --profile --colors",
+    "dev": "NODE_ENV=production ./node_modules/webpack/bin/webpack.js -w --progress --profile --colors",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "author": "Mitch Roote <[email protected]>",