Shadow spells and armor update

Small update.

Core system
Shadow spells now have chance of dealing poison damage to the target
  • shadow push: 10% chance
  • shadow strike: 15% chance
  • shadow wave: 20% chance
  • shadow barrage: 25% chance
The damage dealt by these spells increases for each spell class (push will deal less poison damage than barrage)

items
New items have been added to the game and to the monster drop tables:

Dropped by zombie:
  • rusted chainmail
  • bronze chainmail
  • iron chainmail
  • steel chainmail
  • rusted gauntlets
  • bronze gauntlets
  • iron gauntlets
  • steel gauntlets
  • rusted platelegs
  • bronze platelegs
  • iron platelegs
  • steel platelegs
  • rusted boots
  • bronze boots
  • iron boots
  • steel boots
Items will be reworked in future so that all will have some group (rusted/bronze/iron/steel...) which would be much easier for player to know what item is better than any other...