[Warlords] Air Forces Mod v0.2w 2016-10-05

- Three new unit combat types: Early Aircraft, Airplanes and Jetplanes. The
early aircraft unit combat represents aircraft from the WWI era or earlier,
the airplanes unit combat represents aircraft from the WWII era and the
jetplanes unit combat represents modern day aircraft.

- Updated aircraft combat code so they will now gain experience like other
combat units. Additionally aircraft set to the intercept mission will also
gain experience when they intercept other aircraft.

- Reduced the air range by 2 for all aircraft since they will now be able to
get the range promotions.

Air Range I:
- Requires: None[TAB]
- Abilities
- +1 Air Movement Range
- -10% Strength

Air Range II:
- Requires: Air Range I Promotion
- Abilities
- +1 Air Movement Range
- -5% Strength

Air Range III:
- Requires: Air Range II Promotion
- Abilities
- +2 Air Movement Range
- -5% Strength

Air to Air Missiles I:
- Requires: Improved Radar Promotion and Rocketry Tech[TAB]
- Abilities
- Can Intercept Aircraft (10% Chance)

Air to Air Missiles II:
- Requires: Air to Air Missiles I Promotion
- Abilities
- Can Intercept Aircraft (15% Chance)

Air to Air Missiles III:
- Requires: Air to Air Missiles II Promotion
- Abilities
- Can Intercept Aircraft (10% Chance)

Chaff:
- Requires: Improved Radar Promotion
- Abilities
- Evade Interception (+15% Chance)

GAU-8 Gatling Gun
- Requires: None
- Abilities
- Evade Interception (-40% Chance)
- +75% vs. Archery Units
- +75% vs. Mounted Units
- +75% vs. Melee Units
- +50% vs. Siege Units
- +75% vs. Gunpowder Units
- +50% vs. Armored Units

Improved Radar:
- Requires: Radio Tech[TAB]
- Abilities
- Can Intercept Aircraft (15% Chance)

Multiple Target Acquisition I:
- Requires: Improved Radar Promotion
- Abilities
- Can Attack Multiple Times Per Turn
- +1 Movement Range
- -15% Strength

Multiple Target Acquisition II:
- Requires: Multiple Target Acquisition I Promotion
- Abilities
- +1 Movement Range
- -15% Strength

Multiple Target Acquisition III:
- Requires: Multiple Target Acquisition II Promotion
- Abilities
- +1 Movement Range
- -5% Strength

Torpedo:
- Requires: Radio Tech
- Abilities
- -1 Air Movement Range
- Evade Interception (-15% Chance)
- +75% vs. Naval Units

-----v0.1w------

- Added 3 new unit combat types: Early Aircraft, Airplanes and Jetplanes. The
early aircraft unit combat represents aircraft from the WWI era or earlier,
the airplanes unit combat represents aircraft from the WWII era and the
jetplanes unit combat represents modern day aircraft.

- Updated aircraft combat code so they will now gain experience like other
combat units. Additionally aircraft set to the intercept mission will also
gain experience when they intercept other aircraft.

- Reduced the air range by 2 for all aircraft since they will now be able to
get the range promotions.

- Added the <AirRateChange> tag to the CvPromotionInfo schema definition and
the underlying SDK code changes required to utilize it.

- Added three new promotions specifically for aircraft units: Air Range I, Air
Air Range II and Air Range III. These three promotions increase the air range
of aircraft units.

- Added the GAU-8 Gatling Gun promotion. It significantly increases combat
against land forces but at the risk of not being able to evade interception.

- Added the Topedos promotion. It significantly increases combat against naval
forces but it reduces aircraft units range and reduces the chance to evade
interception.

- Added the Improved Radar promotion. It increases the aircrafts interception
probabilities and is required for other promotions.

- Added the Air to Air Missiles promotion. This set of promotions improve the
interception probabilities of aircraft.

- Updated Airports so they give air units 4 XP when built like barracks