Enable combining wands on an anvil- WIP, hacky.
Allow casting boon on other players/entities.
Add stack traces to an undo saving error I encountered.

Hoping to catch it next time.
Add a disabled maps feature.

This is to hopefully work-around an issue where a map that gets created
prior to a world reset stays broken forever.
Fix cooldowns on fill and superconstruct spells
Implement wand descriptions and ownership

Also, fix limited-use wands.
Added /wand describe command (technical)

Also added better feedback to wand and wandp commands
Implement generic projectile spell

I'd like to add a lot more to this over time.
Add visual effects to boon and curse spells.
Fix not being able to modify wands via the wand command.
Add console messages about which config files get loaded.
Document all YML files
Add missing localizations for new wither spell.
Prepare for 2.8.3