Patch 8.1 update.

Update:
Lowered building recruitment slot bonuses.

Update:
- Due to reports of AI not recruiting with multiple turn per year recruit times, I reworked recruitment. Now, all units are 1 turn to recruit but there is only one recruitment slot.
- Decreased attrition, increased siege times by 2.
- Various changes to improve compatibility with other mods.

Fixed AI food bonus for patch 7.

Patch 7 beta compatible.

Updated the AI build cost cap, hopefully they will build more advanced buildings. Let me know if it makes anything messed up.

Update 1.3

- Increased experience required for each rank. Agents x4, Generals x3
- Decreased cultural conversion bonuses of Buildings by 75%.
- Decreased building replenishment bonuses by 50%.
- Increased Cavalry campaign movement, now only reduced by 25%.
- Increased Agent and General movement so they don't slow down armies when embedded in them.
- Decreased Siege equipment movement, now reduced by 60%.
- Changed recruitment times for the cheaper medium units to be the same as light units.
- AI gets a food bonus based on difficulty level.

Update 1.22

- Increased Naval Replenishment rate. Now reduced by 50% instead of 75%.

Update 1.21

- Increased Unit Upkeep by 50%.