Mod: Conceptual Balance 1.3, updated documentation

[HoneyBadger]

I wouldn't want all nations to be perfectly balanced against each other. It makes them too similar. But each nation should atleast be fun to play in Multiplayer, and the balancing issues should atleast be addressed, even if they sometimes get overrode by other considerations.

And if a nation is weak, then it deserves more consideration, and more time spent on it. It's a credit to Illwinter that I can't think of a single nation that everyone universally hates-they might be considered unbalanced, but each nation has it's fans. They're all interesting in their own way, and so they do deserve time and effort to update them.