- Compatibility update for game version 1.38

- Removed obsolete accessory_sound_data from all vehicle units

--== Version 1.2.2 ==--
- Compatibility update for game version 1.37,
- Converted engine sounds to new FMOD sound system,
- Added openable windows.

v1.2.1
- tweaked the bullbar collider,
- added retarders to all transmissions,
- compatibility update for game version 1.36

- Added brand new 40 inch flat top sleeper cab,
- Integrated Piva's dashboard computer,
- Made small fixes to a few paintjobs,
- Rearanged gears in 15 speed transmission,
- Fixed day cab UV map (was mirrored),
- Changed interior variant in the dealer definition

v1.1
- made battery boxes a separate accessory - polished aluminum and painted variants,
- fixes in quick job configs,
- made cabin utility lights a separate accessory with slots,
- added 4 lamps to attach to the slots mentioned above.