100% brand new rebalance for every unit in the game, after lengthy
discussion with Enrique.
Some updated portraits.
A couple new tips.
Stan's "cataphract" mask and helmet (the helmet needs a texture).
This was SVN commit r15644.
Tweaked Roman Logistics tech. Tweaked Siwa Oasis skirmish.
Balance changes: -5 attack, -4 range, -10 health for cavalry
skirmishers, after discussion with alpha123.
This was SVN commit r15245.