updates to deploy to heroku

package.json

@@ -3,7 +3,7 @@
   "version": "0.0.0",
   "scripts": {
     "ng": "ng",
-    "start": "ng serve",
+    "start": "node server.js",
     "build": "ng build",
     "test": "ng test",
     "lint": "ng lint",
@@ -24,8 +24,11 @@
     "@angular/platform-browser-dynamic": "^6.0.0",
     "@angular/router": "^6.0.0",
     "core-js": "^2.5.4",
+    "express": "^4.16.3",
     "hammerjs": "^2.0.8",
+    "path": "^0.12.7",
     "rxjs": "^6.3.0",
+    "typescript": "~2.9.0",
     "zone.js": "^0.8.26"
   },
   "devDependencies": {
@@ -48,5 +51,9 @@
     "protractor": "~5.3.0",
     "ts-node": "~5.0.1",
     "tslint": "~5.9.1"
+  },
+  "engines": {
+    "node": "10.0.0",
+    "npm": "5.6.0"
   }
 }