Post-process for Yi 0.10.x
Merge pull request #100 from Fuuzetsu/yi

Post-process for Yi 0.10.x
hackage4nix.hs: don't try to re-generate yi-custom
Configure vector build with -msse2 on i686 platforms to fix test suite failures.

https://github.com/haskell/vector/issues/47
Don't wrap raw Yi at all

We do the wrapping in hand-written yi-custom and use ghcWithPackages
instead which works like a charm and relieves us from this stupid double-wrapping
Merge pull request #101 from Fuuzetsu/yi

Don't wrap raw Yi at all
release.nix: disable all Darwin builds because GHC is broken on that platform