Add morgan dependency to package.json

Author: kiyomi215

package.json

@@ -46,6 +46,7 @@
     "body-parser": "^1.15.2",
     "cors": "^2.7.1",
     "express": "^4.14.0",
+    "morgan": "^1.7.0",
     "neo4j": "^1.1.1",
     "path": "^0.12.7",
     "react": "^15.3.0",