Use express-unpkg

package.json

@@ -27,6 +27,7 @@
     "date-fns": "^1.0.0",
     "errorhandler": "^1.4.3",
     "express": "^4.13.4",
+    "express-unpkg": "^1.0.0",
     "extract-text-webpack-plugin": "^1.0.1",
     "file-loader": "^0.8.5",
     "history": "^3.0.0-2",
@@ -37,7 +38,6 @@
     "json-loader": "^0.5.4",
     "markdown-loader": "^0.1.7",
     "morgan": "^1.7.0",
-    "npm-http-server": "^4.3.0",
     "on-finished": "^2.3.0",
     "postcss-loader": "^0.9.1",
     "react": "^15.1.0",