(svn r13549) [NewGRF_ports] -Change: Make recolouring of groundtile (0x0f80) specific to NewGRF_ports only.
Also base groundsprite on airport_tile of station. This prevents mixed colour groundtiles in an airport.

Makefile*
bin/*
!bin/data/chars.grf
!bin/data/openttdd.grf
!bin/data/openttdw.grf
!bin/data/opntitle.grf
!bin/scenario/README
!bin/scripts*
config.*
objs/*
src/rev.cpp