update webpack to v4.7.0 along with a few dependencies

package.json

@@ -89,9 +89,9 @@
     "vue-template-compiler": "^2.5.16",
     "vue-virtual-scroll-list": "^1.2.5",
     "vuex": "^3.0.1",
-    "webpack": "^4.6.0",
-    "webpack-bundle-analyzer": "^2.11.0",
-    "webpack-cli": "^2.0.15",
+    "webpack": "^4.7.0",
+    "webpack-bundle-analyzer": "^2.11.1",
+    "webpack-cli": "^2.1.2",
     "webpack-stats-plugin": "^0.2.1",
     "worker-loader": "^1.1.1"
   },
@@ -124,8 +124,8 @@
     "karma-mocha-reporter": "^2.2.5",
     "karma-sourcemap-loader": "^0.3.7",
     "karma-webpack": "3.0.0",
-    "nodemon": "^1.15.1",
+    "nodemon": "^1.17.3",
     "prettier": "1.11.1",
-    "webpack-dev-server": "^3.1.3"
+    "webpack-dev-server": "^3.1.4"
   }
 }