[arch-haskell] All AUR packages updated to 6.12 depends

I've updated all the AUR packages to use 6.12 dependencies. (thanks to the archlinux package for scripting support). I'll write up the big announce of the transition, though we do still need a few tweaks to the community and extra package dependencies. http://www.archlinux.org/packages/?sort=&arch=i686&repo=&q=haskell&last_update=&limit=all So at this point, I'd welcome any build reports of things in AUR that break (set the 'out of date' flag), and CC me. -- Don