Code:

Major changes here: - Assorted bugfixes from ilteroi and myself - Some github issue resolution and cleanup - New luxury system, dropped the pop scaler and local luxury buff and now all luxury 'power' comes through the empire level. - All unique owned or traded for luxuries are worth 2 happiness each, period. Simple! - Empire happiness is no longer distributed 'modulo' - is now averaged across all cities, with the division remainder handed out one by one to each city in succession, starting with Capital and continuing until no remainder, well, remains. - New empire-wide happiness function - is now a happy/unhappy comparison, with parity of happy-unhappy a 100% value for your empire happiness. - New handicap function - there are now two handicap values, one that is a larger empire-wide value, and another that just affects your capital. Scales based on difficulty. - New ratios for unhappy/very/super are 60/40/20 (were 75/50/25) - Adjusted happiness modifiers and metrics to account for other changes And only balance: - Shoshone encampment tech bumps moved to gunpowder/rifling