helper functions for working with haskell-src-exts trees; documentation

 A small suite of helper functions for working with haskell-src-exts:
  * Free variables
  * Bound variables
  * Minimal (approximate) rebracketing of AST values such that
    prettyprint roundtrips.
 .
 This package provides the documentation for a library for the Haskell
 programming language.
 See http://www.haskell.org/ for more information on Haskell.