🐛 Move dev dependency to default dependencies

package.json

@@ -40,6 +40,7 @@
     "socket.io-client": "^2.0.3",
     "vue": "^2.3.3",
     "vuex": "^2.3.1",
+    "html-entities": "^1.2.1",
     "yargs": "^8.0.2"
   },
   "devDependencies": {
@@ -58,11 +59,9 @@
     "eslint": "^4.3.0",
     "eslint-plugin-node": "^5.1.1",
     "eventsource-polyfill": "^0.9.6",
-    "express": "^4.14.1",
     "extract-text-webpack-plugin": "^2.0.0",
     "file-loader": "^0.11.1",
     "friendly-errors-webpack-plugin": "^1.1.3",
-    "html-entities": "^1.2.1",
     "html-webpack-plugin": "^2.28.0",
     "http-proxy-middleware": "^0.17.3",
     "moment": "^2.18.1",
@@ -73,7 +72,6 @@
     "rimraf": "^2.6.0",
     "semver": "^5.3.0",
     "shelljs": "^0.7.6",
-    "socket.io-client": "^2.0.3",
     "stylus": "^0.54.5",
     "stylus-loader": "^3.0.1",
     "url-loader": "^0.5.8",