Install axios instead of got

Author: Hyunje Jun

package-lock.json

@@ -30,8 +30,8 @@
   "dependencies": {
     "@types/body-parser": "^1.16.3",
     "@types/node": "^7.0.31",
-    "body-parser": "^1.17.2",
-    "got": "^7.0.0"
+    "axios": "^0.16.2",
+    "body-parser": "^1.17.2"
   },
   "devDependencies": {
     "@types/express": "^4.0.35",