Sync update.

Change XX.

-Slightly adjusted the basic_with_regions_task_generator_group AI personality to more intelligently prioritize completion of regions, and to (hopefully) not attack rebel armies in other people's territories so much.

Change XIX.

-Made significant improvements to the AI strategic map behavior and priorities.

Change XVIII.

-Further decrypted CA's bewildering "mod" (modifier) values. For anyone that follows, it is this:

Negative rom_tech_military_management_upkeep_mod "mod" values...

-70 = 10% ~ (ie. 100g upkeep becomes 10g)
-60 = 20%
-55 = 25%
-50 = 30%
-45 = 35%
-40 = 40%
-35 = 45%
-30 = 50%
-20 = 60%
-10 = 70%
-5 = 75%

Positive "mod" values...

10 = ?
20 = ?
25 = ?
30 = 110%
40 = 118% ~
50 = 125%
70 = 150%
80 = 160%
90 = 170%
100 = 180%
110 = 190%
120 = 200% ~

-Adjusted/corrected various difficulty "handicap" mod values.

Change XVII.

-Corrected an error with the AI unit unkeep and mercenary upkeep modifier values in the Wrath of Sparta campaign.

-Corrected an error with AI research cost modifier in all campaigns.

Minor update.

Synchronization update.

Change XVI.

-Made several important corrections to errors that caused the AI to much more difficult than intended on difficulties lower than Legendary (ie. Hard).

Change XV.

-Extensively reworked difficulty modifiers on happiness, so that now the highest difficult levels no longer provide ANY happiness bonus to the player. Essentially you will now have real happiness levels, no longer are they artificially modified like they were in the original game, at the highest difficulty. This makes entertainment buildings more important (they were nearly useless before), as well as women in the family tree (when they are promoted they provide faction wide happiness bonuses).

-As a balancing factor due to the above change, also the AI's happiness bonuses for all difficulty levels has been cut in half. Now it might be possible to manipulate the happiness of AI provinces in order to trigger a revolt/uprising. This was nearly impossible before due to the AI happiness bonuses being so high that they were rarely ever below +100 happiness.