feat(pacakge.json): update engines and npm run scripts

Author: lirantal

server/package.json

@@ -11,23 +11,21 @@
     "url": "https://github.com/meanjs/mean.git"
   },
   "engines": {
-    "node": ">=6.9.2",
-    "npm": ">=3.10.8"
+    "node": ">=8.4.0",
+    "npm": ">=5.3.0"
   },
   "scripts": {
     "update": "npm update && npm prune",
-    "clean": "rm -rf node_modules/ public/lib/",
+    "clean": "rm -rf node_modules/",
     "reinstall": "npm cache clean && npm run clean && npm install",
-    "start": "gulp",
-    "start:prod": "gulp prod",
-    "start:debug": "gulp debug",
-    "gulp": "node --harmony node_modules/.bin/gulp",
+    "start": "node server.js",
+    "start:debug": "nodemon --inspect server.js",
     "test": "gulp test",
     "ava": "NODE_ENV=development node --harmony server.js & sleep 5 && ava",
     "test:server": "gulp test:server",
     "test:server:watch": "gulp test:server:watch",
     "test:coverage": "gulp test:coverage",
-    "generate-ssl-certs": "scripts/generate-ssl-certs.sh"
+    "generate-ssl-certs": "lib/scripts/generate-ssl-certs.sh"
   },
   "dependencies": {
     "acl": "~0.4.9",
@@ -58,6 +56,7 @@
     "multer": "~1.2.0",
     "mysql": "^2.12.0",
     "nodemailer": "~2.6.4",
+    "nodemon": "^1.11.0",
     "owasp-password-strength-test": "~1.3.0",
     "passport": "~0.3.2",
     "passport-facebook": "~2.1.0",