haskell-hspec-wai: update to version 0.3.0.2
haskell-http-client: update to version 0.3.8
haskell-cabal-bounds: update to version 0.8.6
Add haskell-meep package
haskell-Rasterific: re-generate with cabal2nix
haskell-FontyFruity: update to version 0.3
haskell-diagrams-rasterific: update to version 0.1.0.1
haskell-monad-journal: update to version 0.2.3.1
haskell-pandoc-citeproc: update to version 0.5
haskell-pandoc: update to version 1.13.1
haskell-robots-txt: update to version 0.4.1.1
haskell-simple-sendfile: update to version 0.2.17
haskell-zeromq4-haskell: update to version 0.6.1
haskell-vcsgui: update to version 0.1.0.0
haskell-fay: update to version 0.20.1.3
haskell-vcswrapper: update to version 0.1.0
haskell-Agda: update to version 2.4.2

I had to disable the Haddock phase because of lots of errors:

  http://hydra.cryp.to/build/181564/nixlog/1/raw
Add haskell-directory-layout 0.7.4
haskell-scotty: update to version 0.9.0
haskell-llvm-general: update to version 3.4.4.x