Alllow overlapping Simulate casts.

We'll see how this goes....
Don't add "Backup" casts to the undo queue.
Default "protected" and "powered" permissions to false
Add commit_on_quit option
Enable auto-binding wands
Remove legacy player data migration
Add "welcome_wand" config option to give new players a wand
Update and re-arrange example files.
Trying to track down these weird LostWand save failures
Some spell and wand tweaks
Some autonoma tweaks
Fix yml error in infobook config
Fix brush-based material name messages, again
Some hopeful fixes for Wand NPE errors I've gotten after unloading a world