revert to septa api for rt tracking

api/src/services/trip_tracking.rs

@@ -97,7 +97,10 @@ impl TripTrackingService {
                             delay: live_track.delay, 
                             next_stop_id: live_track.next_stop_id, 
                             timestamp: live_track.timestamp,
-                            vehicle_id: live_track.vehicle_id 
+                            vehicle_ids: match live_track.vehicle_id {
+                                Some(x) => x.split(",").map(|f| String::from(f)).collect(),
+                                None => vec![]
+                            }
                         }
                     )
                 }