Forgot court grandeur on Extreme.

Large AI realms were having a lot of revolts. I've added some opinion modifiers to help them out.

Hard AI:
+ Direct Vassal Opinion: +5
+ Same Culture Opinion: +5

Very Hard AI:
* Men-at-Arms Maintenance: 25% -> 20%
+ Direct Vassal Opinion: +5
+ Same Culture Opinion: +5
+ Same Faith Opinion: +5

Hard:
- Levy Size: -10%
- Domain Limit: -1
+ General Opinion: -5
+ Court Grandeur: -4
Hard AI:
+ Men-at-Arms Recruitment Cost: -30%
+ Men-at-Arms Maintenance: -10%

Very Hard:
* Tyranny Decay: -20% -> -28%
- Fertility: -10%
- Levy Size: -20%
+ Short Reign Duration: +10%
+ Size of Men-at-Arms Regiments: -1
+ Court Grandeur: -10
Very Hard AI:
+ Men-at-Arms Recruitment Cost: -50%
+ Men-at-Arms Maintenance: -25%
+ Levy Size: +10%
+ Monthly Income: +10%

Extreme:
* Tyranny Gain: +20% -> +25%
* Tyranny Decay: -20% -> -28%
* Dread Gain: -20% -> -25%
- Fertility: -10%
- Natural Dread: -5
- All Primary Stats: -1
+ Size of Men-at-Arms Regiments: -1
Extreme AI:
same as Very Hard

Updated diligent override to 1.5 version.

Changed to 1.5.*

Fixed some localization.

Added dummy decisions to view the modifiers in tooltip form in-game.

Changed 'diligent' to lessen the cumulative effect with harder difficulties.

Diligent:

• Stewardship: 3 -> 2
  
• Learning: 3 -> 2
  
• Stress Loss: -50% -> -35%

Added Extreme difficulty.

Very Hard:
+ Tyranny Decay: -20%
+ Tax From Vassals: -10%
+ Levies From Vassals: -10%
+ Personal Scheme Chance: -10%
* Hostile Scheme Chance: -5% -> -10%