1.0.1 (2013/01/23)
 - Changed type of transformer from [Ast] -> [Ast] to [Ast] -> IO [Ast]
   (as suggested by John MacFarlane)

0.1.2 (2011/01/30)
 - Updated for GHC 7 (Thanks to Yusaku HASHIMOTO)

0.1.1 (2009/04/25)
 - Updated for GHC 6.10

0.1 (2008/09/26)
 - Initial release