hslibs

[Alex Ferguson]

Well, so far I've gathered that syslibs ghc and posix have moved and been
renamed, and that the "full story" is hidden someplace within the docs
 -- someplace I haven't yet been able to find.
 
Any further clues as to where I might find the dire fate that's befallen
hbc and contrib?  Are these no longer distrubted or supported _at all_?
I had assumed they were just undergoing Yet Another Reorganisation.

Slainte,
Alex.