[WIP] Foraging changes and enchantments

So, I finally decided to get off my lazy ass and do something:
1). Maximum Survival skill attainable through foraging is determinated on ones intelligence.
2). Adds foragable bird and reptile eggs into game and modifies appropriate recipes to include them.

Possible features (if I am not too lazy or incompetent to do them):
O). Trash - treasures of humanity. May be found during foraging.
O). Scratches, rashes and other accidents.
O). Snakes and other (giant) vermin hiding in bushes? Surprise bites and poisonings?
O). Eggs of giant insects?
O). PER based penalties/bonuses to foraging?

Discuss and suggest.