Updated webpack and some of its dependencies past CVE-2018-14732

package.json

@@ -40,10 +40,10 @@
     "chalk": "^2.0.1",
     "copy-webpack-plugin": "^4.0.1",
     "css-loader": "^0.28.0",
-    "extract-text-webpack-plugin": "^3.0.0",
+    "extract-text-webpack-plugin": "3.0.2",
     "file-loader": "^1.1.4",
     "friendly-errors-webpack-plugin": "^1.6.1",
-    "html-webpack-plugin": "^2.30.1",
+    "html-webpack-plugin": "3.2.0",
     "node-notifier": "^5.1.2",
     "optimize-css-assets-webpack-plugin": "^3.2.0",
     "ora": "^1.2.0",
@@ -62,10 +62,10 @@
     "vue-style-loader": "^3.1.2",
     "vue-template-compiler": "^2.5.2",
     "vue2-collapse": "^1.0.15",
-    "webpack": "^3.6.0",
+    "webpack": "4.30.0",
     "webpack-bundle-analyzer": "^2.9.0",
     "webpack-cli": "^3.0.8",
-    "webpack-dev-server": "^2.9.1",
+    "webpack-dev-server": "3.3.1",
     "webpack-merge": "^4.1.0"
   },
   "engines": {