Update packager script

Also check test and tester scripts

package.json

@@ -34,12 +34,13 @@
   "homepage": "https://30secondsofcode.org/",
   "dependencies": {},
   "devDependencies": {
-    "@babel/core": "^7.1.2",
+    "@babel/core": "^7.5.5",
     "@babel/plugin-proposal-class-properties": "^7.5.0",
     "@babel/plugin-syntax-dynamic-import": "^7.2.0",
     "@babel/preset-env": "^7.5.4",
     "@babel/preset-react": "^7.0.0",
     "babel-plugin-transform-es2015-modules-commonjs": "^6.26.2",
+    "babel-plugin-transform-object-rest-spread": "^6.26.0",
     "codacy-coverage": "^3.2.0",
     "eslint": "^5.7.0",
     "front-matter": "^3.0.2",