Updates 26.1.

[Boris]

- Fixed a bug with giants not dropping ores (dskull, drock)
- Mana stones removed from loot pool
- Wear off rate of poison (Poisoning skill) boosted:

• Poisoning skill *) / % chance for poison to wear off **)
• 90% / 40%
• 92% / 35%
• 94% / 30%
• 96% / 25%
• 98% / 20%
• 100% / 15%

*) Base skill
**) Wears off = Poison drops one level, i.e. from dpoison to gpoison