added oddball item

added oddball item and balance to mid creep
fixed npc_item_custom with thirst, and added it in oddball.lua
once again small mods, fixed modifier not in string
Merge pull request #139 from D-storm/master

Documentation Fix - for Mod Events wrong key values were corrected
Merge pull request #138 from hanni7345/master

added oddball item, fixed mid creep
Merge pull request #1 from ash47/master

Updating it with Ash47/Frota