Deadwood snapshot update: Some more compression bugs fixed

I have fixed a couple of bugs that made some DNS packets not decompress-then-recompress properly, and have released a new testing release of Deadwood. As before, hit on this release and lets see if we can find any other DNS packets which make Deadwood complain the packet doesn't decompress or recompress properly.

I will run this for a few hours; if I don't see any more problem packets, I will make the 2.4.04 and release it early this afternoon.

It can be looked at by going to maradns.org/deadwood/snap.

It's nice to be wrapping things up with the decompression/compression code; DNS compression is a royal headache and one of the parts of DNS I loathe the most.