Since ec19e5d663 German Support Wagons cannot train Units anymore so
that Wagon Trains cannot unlock this ability as well.
Reported by @xordspar0
Fixes#8799
A discussion on the forums had the result, that the name Neareastern
Badlands should be changed as it contains an eurocentric view on Anatolia.
Fixes#8590
Tooltips for map sizes were introduced in 8cfd494b88 when 'Giant'
received the same sentence as 'Very Large'.
This commit fixes the tooltip for Giant Maps by giving them a proper
sentence, which might avoid confusion.
obelix