Serialization for D part 2

[BCS]

It turned out that the first pass was easy. No unexpected problems. However 
I noticed a few more things I'm going to have to deal with at some point.

http://arrayboundserror.blogspot.com/2009/05/serialization-for-d-part-2-of-n.html
Again, please comment! (here or there, doesn't matter, I think I'll see both)

p.s. Sorry, no code yet (it's still messy) but fixing that is on the list 
as well.