[project @ 2002-08-29 11:49:10 by simonmar]

[project @ 2002-08-29 11:49:10 by simonmar]
Make the readline binding into a hierarchical library and put it in
its own package (for licensing reasons).

As part of this, I moved fdToHandle from PosixIO into GHC.Handle (and
updated the code to avoid using _casm_) since Readline requires it.

I've also updated Readline to use the latest FFI syntax.