Merge pull request #39 from sendinblue/feature_new-params

Update version of dependency 'superagent' to avoid potential security vulnerability

Author: ekta-slit

package.json

@@ -27,7 +27,7 @@
     "fs": false
   },
   "dependencies": {
-    "superagent": "3.5.2"
+    "superagent": "3.7.0"
   },
   "devDependencies": {
     "mocha": "~2.3.4",