0.11.0 (unreleased)
    - drop support for python 2 & 3.5, as well as marshmallow 2.
      Python >= 3.6 and marshmallow >= 3 are now required!
      Python 3.5 should still work - no breaking changes yet,
      it just isn't a part of the build anymore.

0.10.0 (2020-03-03)
    - added ReactJsonSchemaFormJSONSchema extension
    - Add support for allow_none (#106 thanks @avilaton!)
0.9.0 (2020-01-18)

0.8.0 (2019-10-08)

0.7.0 (2019-08-11)

0.6.0 (2019-06-16)
    - lots of various fixes
    - fix compatibility with brutusin/json-form
    - drop support for python 3.3
    - fix BC breaks in marshmallow 3 (someday it will be released!!)
    - probably (hopefully?) the last major version to support py2!

0.5.0 (2018-07-17)
    - support for marshmallow 3

0.4.0 (2017-07-13)
    - add support for fields.List (thanks @Bartvds and @sdayu
      for tests & implementation)

0.3.0 (2016-06-12)
    - add support for marshmallow validators (see #14)

0.2.0 (2016-05-25)
    - add support for titles & descriptions in metadata
