add mongoose

Author: mambalex

package.json

@@ -16,6 +16,7 @@
     "express": "^4.16.2",
     "express-session": "^1.15.6",
     "method-override": "^2.3.10",
+    "mongoose": "^5.0.1",
     "passport": "^0.4.0",
     "passport-local": "^1.0.0",
     "passport-local-mongoose": "^4.4.0",