New upload

Fix falling rubble trap.
Vampire Lord has laboratory skills back.
Tweak random encounters.
Small fix to remove scree bird from chopping trees so they don't burn.
Show the full set of immigrants on the immigration screen for goblins.
Fix cow demons, they weren't spawning
Update version
Fix "keeper is wounded" warning for gnome keepers.
Random encounters when mining and cutting trees.
Extra training for gnome chief