block.Multiblock now handles construction
block.Platform now uses Multiblock object as the source of TileEntity info
EventHandler: deleted, NEI handled by Assets class
tile. Core: deconstruction stub
tile.Perimeter: TODOs

TODO:
1. tile.Perimeter should use underlying block for meta and not store it; or store?
2. Deconstruction - delegate to multiblock
3. Construction: create code
block.Multiblock : handles block-level diasassembly
tile.Core: handlest tile-level assembly

TODO:
1. tile.Perimeter should store meta; because tile is invalidated after its underlying block is replaced
2. Deconstruction - delegate to multiblock
3. Construction: create code
Deconstruction seems to be done

TODO:
1. Construction: create code