(svn r10853) [NewGRF_ports] -Feature: Added heliport to airportsbasic.grf. Added Heli-EndTakeoff stage.
Fix: Terminals (and especially helipads) were being incorrectly selected. Terminals may now be selected if the vehicle already owns the terminal bit.
Add: Added SetAll function if 0xFF found in blocklist.
Fix: Corrections to large airport (mostly heli-related).