[Haskell-cafe] Haskell Platform install instructions

[Mark Lentczner]

> * Should we document this somewhere in the Haskell Platform install
> process? I'm sure many old-time users of cabal are well aware that
> they need ~/.cabal/bin in the PATH, but new users will not be.

In the next version of Haskell Platform, on Mac OS X, happy will be installed with the other platform files, and symlink'd into /usr/bin.

> The need to mention ~/.cabal/bin belongs to the empty user guide of cabal-install.

I'm not sure what is meant by "guide" here.  cabal-install has a symlink-bindir option. In the next version of Haskell Platform, on Mac OS X, if the user has no ~/.cabal directory at all, then I'm planning on having it install a ~/.cabal/config file that, among other things, will set this symlink-bindir to symlink into ~/bin.

	- Mark