Only store updates if iTrak data is changed (#94)
Only store updates if iTrak data is changed (#94)

* Only store updates if iTrak data is changed

* Use last 15 min of updates instead of 100 updates to guess route

wtg/shuttletracker,wtg/shuttle_tracking_2,wtg/shuttle_tracking_2,wtg/shuttletracker,KeyboardNerd/shuttle_tracking_2,wtg/shuttletracker,KeyboardNerd/shuttle_tracking_2,wtg/shuttletracker,wtg/shuttletracker,wtg/shuttle_tracking_2,KeyboardNerd/shuttle_tracking_2,KeyboardNerd/shuttle_tracking_2,wtg/shuttle_tracking_2,wtg/shuttle_tracking_2,wtg/shuttle_tracking_2,wtg/shuttletracker