Nightly build snapshots available

[Simon Marlow]

As requested by several people, we're now making source snapshots of GHC
available every night, together with some binary distributions (only
x86-linux to begin with) built by the nightly build system.

Pointers to the snapshots are on GHC's download page, here:

  http://www.haskell.org/ghc/download.html

Note that there aren't any source distributions yet, but they will start
to appear from tonight.

Enjoy...

Simon