0.0.6 (2015-10-24):
    - More code changes to compile under GHC 7.10's new Template Haskell.
0.0.5 (2015-10-23):
    - Code changes to compile under GHC 7.10's new Template Haskell.
0.0.4 (2015-04-02):
    - Removed upper bounds.
0.0.3 (2015-04-02):
    - Relaxing upper bounds.
0.0.2 (2015-02-21):
    - Bug fixes.
0.0.1 (2015-02-08):
    - Initial version.
