replaced logging with Winston

package.json

@@ -44,7 +44,8 @@
     "passport-local": "^1.0.0",
     "pug": "^2.0.0-rc.4",
     "request": "^2.83.0",
-    "request-promise": "^4.2.2"
+    "request-promise": "^4.2.2",
+    "winston": "^2.4.0"
   },
   "devDependencies": {
     "@types/async": "^2.0.45",
@@ -69,8 +70,9 @@
     "@types/passport-facebook": "^2.1.3",
     "@types/request": "^2.0.9",
     "@types/request-promise": "^4.1.39",
-    "@types/supertest": "^2.0.4",
     "@types/shelljs": "^0.7.7",
+    "@types/supertest": "^2.0.4",
+    "@types/winston": "^2.3.7",
     "chai": "^4.1.2",
     "concurrently": "^3.5.1",
     "jest": "^21.2.1",