Log Message:
Update to 0.4.1

changes:
0.4.1
 - Fix testsuite for newer GHCs (fixes #23)
0.4.0
 - Both Typeable1 and Typeable2 are simply Typeable for GHC v7.7 and up
 - Update test outputs wrt Typeable changes
 - Use Cabal's support for test suites
 - Use LANGUAGE pragmas instead of OPTIONS_GHC/Cabal extensions, add .ghci
 - Fix compile errors in test suite