[commit: base] encoding's head updated: Merge branch 'master' of ssh://darcs.haskell.org/srv/darcs/packages/base into encoding (3033499)

[Max Bolingbroke]

Repository : ssh://darcs.haskell.org//srv/darcs/packages/base

Branch 'encoding' now includes:

     57b9366... Improve docs for GHC.IO.FD.openFile
     2c764e4... Update comment on fmapDefault to note that it only works for Traversable instances with a given definition of traversable, and NOT for instances with only sequenceA given.
     4482831... Part of #5122 "Faster conversion between Rational and Double/Float" fix
     7b7fc46... Fix build on 64bit machines
     4475dca... For GHC, implement the Typeable.hs macros using standalone deriving
     f1e42c5... Remove an unnecessary -fno-warn-unused-binds flag
     68871b8... Remove a redundant -fno-warn-unused-binds flag
     41839f1... monad comprehensions: Group and Zip monad
     5dac514... Performance improvement for division: got rid of an unnecessary branching in cases where the second argument is a constant and is not -1.
     cc5431e... Add GHC.Event.getSystemEventManager :: IO (Maybe EventManager)
     a07504a... Add a note about the definition of quot etc
     dc3ea0d... Merge branch 'monad-comp'
     e13d564... Merge branch 'master' of ssh://darcs.haskell.org/srv/darcs/packages/base into encoding
     b751723... disable incorrect RULEs for Floats (#5178)
     ad261e2... In peekEncodedCString, use a chunk size based on input buffer size
     3033499... Merge branch 'master' of ssh://darcs.haskell.org/srv/darcs/packages/base into encoding