specify refactorings to perform with apply-refact; documentation

 This library provides a datatype which can be interpreted by
 apply-refact. It exists as a seperate library so that applications
 can specify refactorings without depending on GHC.
 .
 This package provides the documentation for a library for the Haskell
 programming language.
 See http://www.haskell.org/ for more information on Haskell.