0.4.0.0

* Remove upper bound on depedencies.
* Add support for `GHC 8.0.*`
* Add support for `aeson-1.0.*`

0.3.0.1

* Allow `aeson-0.9.*`

0.3.0.0

* Add version constraints to dependent packages.
* Remove dendency to transformers in test program.

0.2.0.0

* Rename PropType to FieldType.
* Fix typo in cabal file.
* Fix typo in comment.

0.1.0.0

* initial release.