chore(package): remove unnecessary devDependencies, update webpack-dev-server

close #329
close #495
close #496

package.json

@@ -70,7 +70,6 @@
     "eslint-plugin-promise": "^4.0.1",
     "eslint-plugin-standard": "^4.0.0",
     "html-webpack-plugin": "^3.2.0",
-    "http-server": "^0.11.0",
     "increase-memory-limit": "^1.0.6",
     "jquery": "^3.2.1",
     "karma": "^4.0.0",
@@ -90,11 +89,9 @@
     "tslint-loader": "^3.5.3",
     "typedoc": "^0.14.2",
     "typescript": "^2.6.1",
-    "uglifyjs-webpack-plugin": "^2.1.1",
-    "underscore-template-loader": "^1.0.0",
     "webpack": "^4.25.0",
     "webpack-cli": "^3.0.8",
-    "webpack-dev-server": "^3.1.14",
+    "webpack-dev-server": "^3.2.1",
     "webpack-merge": "^4.1.2",
     "webpack-visualizer-plugin": "^0.1.11"
   },