Moving action query instance out of purge system loop, minor efficiency thang
Correcting inventory slot index out of bounds error, bug 535:resolved. Enabling item-remove/insert rollbacks/restores for droppers
Correcting item and entity rollback previews being applied because they're marked as deferred and we started applying deferred blocks. Adding a new change result of ChangeResultType.PLANNED to indicate that a change is planned, but is not being applied nor will be skipped. This is then fed the applier callback so you can decide what to do, and Prism will know not to discard it as if it's skipped. bug 527:resolved