extend the protocol to find the sequence on the server

Communication.proto

@@ -6,7 +6,8 @@ import "AircraftSchedule.proto";
 import "BaseTypes.proto";
 
 message AircraftUpdate {
-    repeated AircraftReport reports = 1; // Contains all updated aircrafts
+    string                  airport = 1; // Contains the updated airport
+    repeated AircraftReport reports = 2; // Contains all updated aircrafts
 }
 
 message AircraftSequence {