Started work on raid block.
Reworked extended NBT foreach and map after finding remove.
Fixed / broke inventories? (onRemoved was dispatched before slot was cleared, now it's after; didn't find anything that relied on it happening before, but we'll see...)
Wrapping up raid block. Seems to work. Closes #179.
Merge branch 'master-MC1.7.10' of github.com:MightyPirates/OpenComputers into master-MC1.7.10