Make the engineering wand more of a normal wand.
Some hacky optimizations to wand creation.

The wolf wand was taking several seconds to create... :\

This is really hacky, but I'm hoping will eliminate the main problem,
the constant re-saving of state during wand creation.
Make replicating, cloning and schematic-building with air a special action.

Testing this out.
Update Wand item on activate, to work-around Bukkit's love of copying ItemStacks. :\
Fix the material brush air-filling functionality.
Fix clone and replicate brushes :\
Fix fill center spot choice, and crazy particle direction.
Remove underscores from schematic names.
Add several schematics to the engineer and random wands.
Make levitate more expensive.
Fix some more wand glitching. I'm hoping this is finally getting cleaned up!
Superpowered wands can disarm and gather superprotected wands.

We'll see how this works out. Might remove the disarm part.
Support copying sign text from schematics.

This feels a bit like throwing a hail-mary to WorldEdit. I don't know
why it wasn't simpler, why I don't get a SignBlock back from the
CuboidClipboard.
Fix spell inventory names.
Removing sk8's maven repo from my pom... is this why I'm blacklisted? :P
Fix a possible NPE with bad materials in a wand inventory on load.
Implement copying of chests from schematics, and add a super awesome stash chest.
Some fixes to pillar and bridge when using special brushes.
Some spell+wand tweaks.
Make pillar, bridge and paint auto-undoable via config.

This should be a general BrushSpell thing. (TODO)