-Limited the range of the Necromantic Power ability to coincide with the base Leadership Aura Size
-Limited the units that can be buffed by the ability to be only undead units

Changed behavior of the mod. Instead of all units receiving Perfect Vigour and Unbreakable, it's the lords and necromancers/vampires that give them these two abilities. If the Lord or Necromancer dies/flees, the army looses these abilities.

-Added Unbreakable to Tomb Kings and to Vampire Coast
-Added Perfect Vigour to Vampire Counts, Tomb Kings and to Vampire Coast