Fix issue in single player where removing a lift leaves the Unity object behind.

Adjust maximum travel audio volume slightly lower.

Fix issue with removed lifts on a dedicated server not being removed from the central collection and then breaking the network update process until server is restarted.

Fix regession bug with lift compressors from prior update.

Fix issue with key bindings not working on load if key bindings file is created for the first time.

Restore 1/31/2019 changes.

Changes to prevent problems with machine tracking when a manufacturing plant set to automate an lift or stop machine creates it at 0,0,0 to spawn the visuals.

Add support for configurable key binding.

- Fix issue where compressor removal/re-placement after a full clearance check does not restore maximum allowable lift extent.
- Increase time for compressor check on world load so lift extent isn't suddenly limited while segments are loading.
- Add popup text when highlighting the compressor.

- Fix issue where compressor removal/re-placement after a full clearance check does not restore maximum allowable lift extent.
- Increase time for compressor check on world load so lift extent isn't suddenly limited while segments are loading.
- Add popup text when highlighting the compressor.