Cabal revisions of machines-0.5.1

Hackage metadata revisions edit the .cabal file after upload; each diff below is one revision.

 name:          machines category:      Control, Enumerator version:       0.5.1+x-revision: 1 license:       BSD3 cabal-version: >= 1.10 license-file:  LICENSE  library   build-depends:-    base         == 4.*,+    base >= 4.5 && < 5,     comonad      >= 3     && < 5,     containers   >= 0.3   && < 0.6,     free         >= 3.1.1 && < 5,   main-is: doctests.hs   default-language: Haskell2010   build-depends:-    base == 4.*,+    base >= 4.5 && < 5,     directory >= 1.0 && < 1.3,     doctest >= 0.8 && <= 0.10,     filepath >= 1.3 && < 1.5   ghc-options:      -O2 -rtsopts -threaded    build-depends:-    base                == 4.*,+    base >= 4.5 && < 5,     conduit             >= 1.0   && < 1.3,     conduit-combinators >= 0.2.5 && < 0.4,     criterion           >= 0.6   && < 1.1,