Added missing Grudge requirements for the new Dwarf mechanic.

• Gnoblar Bonechewer building damage modifier decreased from 1.25 to 0.75
  
• Gnoblar Bonechewer on Chariot building damage modifier decreased from 1.25 to 0.75
  
• Lucky Gits building damage modifier decreased from 1.25 to 0.75
  
• Manbiters (Flails) building damage modifier decreased from 1.25 to 1
  
• Rhinox Riders building damage modifier decreased from 1.5 to 1
  
• Yhetees building damage modifier decreased from 1.25 to 1
  
• Yhetees AP Damage increased from 50 to 70
  
• Ogrebiters building damage modifier decreased from 1.25 to 0.5
  
• Gnoblars (Dual Wield) building damage modifier decreased from 1.25 to 0.75
  
• Scalded Horde building damage modifier decreased from 1.25 to 0.5
  
• Gorespittles building damage modifier decreased from 1.25 to 0.75
  
• Manbiters (Duals) building damage modifier decreased from 1.25 to 0.75
  
• Pigback Riders building damage modifier decreased from 0.75 to 0.5
  
• Knights of Pigbarter building damage modifier decreased from 0.75 to 0.5
  
• Powder Sniffers building damage modifier decreased from 1.5 to 0.75
  
• Pigback Riders (Javelins) building damage modifier decreased from 1 to 0.5
  
• Bloodnose building damage modifier decreased from 1 to 0.75
  
• Bloodnose on Sabretusk building damage modifier decreased from 1.25 to 0.75
  
• Woodbelly building damage modifier increased from 0.75 to 1
  
• Woodbelly on Pigback building damage modifier increased from 0.75 to 1
  
• Gnobbo building damage modifier decreased from 1.25 to 0.75
  
• Gnobbo on Sabretusk building damage modifier decreased from 1.25 to 0.75
  
• Head Honcho building damage modifier decreased from 1 to 0.5
  
• Head Honcho on Pigback building damage modifier decreased from 1 to 0.5
  
• Head Honcho on Rhinox building damage modifier decreased from 1.5 to 1
  
• Rustbuckets (Great Weapons) building damage modifier decreased from 1.25 to 1
  
• Rustbuckets building damage modifier decreased from 1.25 to 0.75

• Rustbuckets building damage modifier decreased from 1 to 0.25
  
• Rhinox Riders building damage modifier decreased from 1 to 0.5
  
• Gorespittles building damage modifier decreased from 1 to 0.5
  
• Pigback Riders (Javelins) building damage modifier decreased from 1 to 0.25
  
• Powder Sniffers building damage modifier decreased from 2 to 0.25
  
• Boom Squad building damage modifier increased from 1 to 1.25
  
• Bloodnose building damage modifier decreased from 1 to 0.5
  
• Gnoblar Flingers building damage modifier decreased from 1 to 0.25
  
• Skull Flingers building damage modifier decreased from 1 to 0.25

• Pigback Rider RoR has lost their cloaking technology.
  
• All Gnoblar factions start with a hero.

• Fixed a bug that prevented the Mischievous Tricks panel from closing after activated.