replaced logging with Winston

package.json

@@ -48,7 +48,9 @@
     "passport-facebook": "^2.1.1",
     "passport-local": "^1.0.0",
     "pug": "^2.0.0-rc.4",
-    "request": "^2.83.0"
+    "request": "^2.83.0",
+    "request-promise": "^4.2.2",
+    "winston": "^2.4.0"
   },
   "devDependencies": {
     "@types/async": "^2.0.45",
@@ -76,6 +78,7 @@
     "@types/request": "^2.47.0",
     "@types/shelljs": "^0.7.8",
     "@types/supertest": "^2.0.4",
+    "@types/winston": "^2.3.7",
     "chai": "^4.1.2",
     "concurrently": "^3.5.1",
     "jest": "^22.0.4",