Another round of changes that should balance the game:

Less powered cities: Decreased cities strength about 40%, about 30% if we add to the math contemporary walls. City HP up from 200 to 250, heal per turn from 20 to 25 also. All walls give now +50 HP.

Soften ranged units: All ranged units have a 15% damage penalty when attacking a damaged unit. Non-siegue ranged units have 25% damage penalty attacking cities.

Air minor changes: Air units rebase distance increased from 2x to 2.5x bombard range. Air units heal 20 HP instead of 25 HP when Air Repair promotion is taken.

AI Policy balance: Tweaked some flavors to help the AI be more varied in the policy selection. AI will prioritize more non-ancient policies when available.

Added language text support for Spanish and Italian languages.

Cofee shop is also boosted with +3 production and no maintenance cost.

Added a few improvements on the Exploration policy branch.