Upgrade Dev-Dependencies

package.json

@@ -31,8 +31,8 @@
     "build-test": "rollup -c test/rollup.unit.config.js",
     "build-uglify": "rollup -c && uglifyjs build/three.js -cm --preamble \"// threejs.org/license\" > build/three.min.js",
     "build-closure": "rollup -c && java -jar node_modules/google-closure-compiler/compiler.jar --warning_level=VERBOSE --jscomp_off=globalThis --jscomp_off=checkTypes --externs utils/build/externs.js --language_in=ECMASCRIPT5_STRICT --js build/three.js --js_output_file build/three.min.js",
-    "dev": "concurrently --names \"ROLLUP,HTTP\" -c \"bgBlue.bold,bgGreen.bold\" \"rollup -c -w -m inline\" \"serve --port 8080\"",
-    "dev-test": "concurrently --names \"ROLLUP,ROLLUPTEST,HTTP\" -c \"bgBlue.bold,bgRed.bold,bgGreen.bold\" \"rollup -c -w -m inline\" \"rollup -c test/rollup.unit.config.js -w -m inline\" \"serve --port 8080\"",
+    "dev": "concurrently --names \"ROLLUP,HTTP\" -c \"bgBlue.bold,bgGreen.bold\" \"rollup -c -w -m inline\" \"serve --listen 8080\"",
+    "dev-test": "concurrently --names \"ROLLUP,ROLLUPTEST,HTTP\" -c \"bgBlue.bold,bgRed.bold,bgGreen.bold\" \"rollup -c -w -m inline\" \"rollup -c test/rollup.unit.config.js -w -m inline\" \"serve --listen 8080\"",
     "start": "npm run dev",
     "lint": "eslint src",
     "test": "npm run build-test && qunit test/unit/three.source.unit.js",
@@ -52,15 +52,15 @@
   },
   "homepage": "https://threejs.org/",
   "devDependencies": {
-    "concurrently": "^3.5.0",
-    "electron": "~1.8.4",
-    "eslint": "^4.1.1",
-    "eslint-config-mdcs": "^4.2.2",
-    "google-closure-compiler": "20180204.0.0",
-    "qunit": "^2.5.1",
-    "rollup": "^0.57.1",
-    "rollup-watch": "^4.0.0",
-    "serve": "~6.5.3",
-    "uglify-js": "^3.0.23"
+    "concurrently": "^3.5.1",
+    "electron": "^2.0.2",
+    "eslint": "^4.19.1",
+    "eslint-config-mdcs": "^4.2.3",
+    "google-closure-compiler": "20180506.0.0",
+    "qunit": "^2.6.1",
+    "rollup": "^0.59.4",
+    "rollup-watch": "^4.3.1",
+    "serve": "^7.1.2",
+    "uglify-js": "^3.3.28"
   }
 }