add utf8-string in haskell platform

[Don Stewart]

ganesh.sittampalam:
> Don Stewart wrote:
> 
> >     http://trac.haskell.org/haskell-platform/ticket/48
> 
> Is that really supposed to have milestone 2009.4.0? I thought the first
> release would just be extralibs.

2009.4.0 is the next major release. We should decide by then if a utf8
lib is in.

-- Don