ADD: Dedicated graphics for the BR Class 499 TLV
CHANGE: Bring forward the retirement date for teh BR Class 499 TLV
FIX: Incorrect bidirectional/can lead at rear settings for the BR Class 419 MLV and 499 TLV (the latter of which had no cabs)
CHANGE: Remove rear coupling constraints from the BR Class 419 MLV
CHANGE: Do not allow the BR Class 499 TLV to lead a train (it had no cabs)