patch applied (cabal): Deprecate defaultUserHooks, export autoconfUserHooks. Fix ticket #165

[Ross Paterson]

On Mon, Jan 21, 2008 at 08:38:49AM -0800, Duncan Coutts wrote:
> Mon Jan 21 08:34:11 PST 2008  Duncan Coutts <duncan at haskell.org>
>   * Deprecate defaultUserHooks, export autoconfUserHooks. Fix ticket #165
>   Setup scripts should switch to simpleUserHooks or autoconfUserHooks.
>   autoconfUserHooks now fails if ./configure is not present.
>   defaultUserHooks does the same thing it always did.

This means that a package with build-type: Configure but no configure
script now fails configure (e.g. mersenne-random-pure64-0.1).