teslamotors/push-core — pull request #3 by tilo (2014-03-19 19:38:52+00:00)
Title: Feature/tracking external message ids

this will allow to track external message ids (ext_id) with each push_notification:
- in the logs
- in the push_messages DB table

and when creating a push notification, a gem-user can then send the ext_id to the mobile app as well,
so the mobile app can do something meaningful with the external id if needed.