Merge pull request #4 from bergmark/no-derivegeneric

Remove unused DeriveGeneric extension, fixes GHC 7.0 build

src/Path.hs

@@ -1,5 +1,4 @@
 {-# LANGUAGE TemplateHaskell #-}
-{-# LANGUAGE DeriveGeneric #-}
 {-# LANGUAGE DeriveDataTypeable #-}
 {-# LANGUAGE EmptyDataDecls #-}
 

src/Path/Internal.hs

@@ -1,5 +1,4 @@
 {-# LANGUAGE StandaloneDeriving #-}
-{-# LANGUAGE DeriveGeneric #-}
 {-# LANGUAGE DeriveDataTypeable #-}
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}