pipes: Add Haskell 'pipes' family of libraries
Fix impurity in HFuse

This impurity caused hsc2hs to start look into /usr/include in any Cabal
project that depends on HFuse on systems where /usr/include is present.
Merge pull request #948 from errge/hfuse

Fix impurity in HFuse
Merge pull request #947 from ocharles/pipes

pipes: Add Haskell 'pipes' family of libraries
haskell-thyme: enable unit tests
haskell-splot: re-generate expression with cabal2nix
cabal-install: update to version 1.18.0.1
haskell-unordered-containers: add version 0.2.3.2
haskell-system-posix-redirect: add version 1.1
haskell-boomerang: update to version 1.4.0
haskell-cereal-conduit: update to version 0.7.1
haskell-cipher-blowfish: update to version 0.0.2
haskell-cipher-des: update to version 0.0.4
haskell-conduit: update to version 1.0.7.4
haskell-cprng-aes: update to version 0.5.2
haskell-crypto-numbers: update to version 0.2.1
haskell-crypto-random: update to version 0.0.7
haskell-derive: update to version 2.5.13
haskell-gnutls: update to version 0.1.5
haskell-hamlet: update to version 1.1.7.2