openal fix, training map selection and rcplane adjustments from Smaxx (untested, but look reasonable). Bunch of new graphics from Tiy, new translation for pt-pt from inu_
foreach(dir
Bamboo
Bath
Blox
Cake
Castle
cheese
City
CrazyMission
EarthRise
Eyes
Freeway
Halloween
hell
Island
nature
Planes
Sheep
Snow
Underwater
)
add_subdirectory(${dir})
endforeach(dir)
install(FILES themes.cfg DESTINATION ${SHAREPATH}Data/Themes)