fix(package): update rollbar to version 2.16.1

Closes #129

Author: greenkeeper[bot]

package.json

@@ -22,7 +22,7 @@
     "password-hash": "1.2.2",
     "qrcode": "^1.3.2",
     "request": "2.88.0",
-    "rollbar": "2.12.2",
+    "rollbar": "2.16.1",
     "rookout": "^0.1.69",
     "stringinject": "2.1.1"
   },