build fix for ghc-7.8: satisfy role constraints

Unfortunately, a nominal role is inferred for the type a in

  newtype ReaderT r m a = ReaderT (r -> m a)

causing a conflict between the declarations of LB in Monad.hs
and Monad.hs-boot. The fix is declare the nominal role
explicitly in the hs-boot file.
disable a couple of plugins
increase maximum message length
patched libraries
update @version output
new hint patch
update patches