Cause: DirectionId not defined in GTFS file.
This affects also synopticView.
Solution: Test first if directionId is null or undefined. In javascript,
the directionId is set to "0". In IpcRoute.java test if
directionId==null and currentDirectionId==null.
Cause: DirectionId not defined in GTFS file. This affects also synopticView. Solution: Test first if directionId is null or undefined. In javascript, the directionId is set to "0". In IpcRoute.java test if directionId==null and currentDirectionId==null.