Commit database when arriving at home.

Since trkpt will stop capturing points, it will not reach the later
part of the handler that commits when a new point is 30 seconds
after the previous commit.

app/src/main/java/net/voussoir/trkpt/TrackerService.kt

@@ -292,6 +292,7 @@ class TrackerService: Service()
                     {
                         Log.i("VOUSSOIR", "Arrived at home.")
                         arrived_at_home = System.currentTimeMillis()
+                        trackbook.database.commit()
                     }
                     else if (
                         allow_sleep &&