chor: update webpack and remove unneeded dependencies

Author: lini

demo/package.json

@@ -21,29 +21,15 @@
     "tns-core-modules": "~4.1.0"
   },
   "devDependencies": {
-    "awesome-typescript-loader": "~5.0.0",
     "babel-traverse": "6.26.0",
     "babel-types": "6.26.0",
     "babylon": "6.18.0",
-    "clean-webpack-plugin": "~0.1.19",
-    "copy-webpack-plugin": "~4.5.1",
-    "extract-text-webpack-plugin": "~3.0.2",
     "lazy": "1.0.11",
     "nativescript-css-loader": "~0.26.0",
     "nativescript-dev-typescript": "~0.6.0",
-    "nativescript-dev-webpack": "~0.12.0",
-    "nativescript-worker-loader": "~0.8.1",
-    "raw-loader": "~0.5.1",
-    "resolve-url-loader": "~2.3.0",
+    "nativescript-dev-webpack": "~0.14.0",
     "tslint": "^5.8.0",
-    "typescript": "~2.7.2",
-    "uglifyjs-webpack-plugin": "~1.2.4",
-    "webpack": "~4.5.0",
-    "webpack-bundle-analyzer": "^2.9.1",
-    "webpack-cli": "~2.0.14",
-    "webpack-sources": "~1.1.0",
-    "css-loader": "~0.28.7",
-    "uglifyjs-webpack-plugin": "~1.1.6"
+    "typescript": "~2.7.2"
   },
   "scripts": {
     "build.plugin": "cd ../src && npm run build",