Build #860t on LE (openbeta)

- Zen mode to highscore server. Both businesses and towns are tagged as 'zen'
- Zen towns have zero score and zero efficiency so they don't complete with players on standard mode.
- Fix high scores for new regions without any scores.
- Created port bypasses for completed ones that are past a non-complete one.
- Fixed a crash when delivering with planes from the current airport.