------------------
- **Breaking change**: Simplify urls setup. [ryneeverett]
When upgrading to 1.0.0 change cartridge_braintree urls in ``urls.py`` to::
url("^shop/(?=checkout(/?)$)", include("cartridge_braintree.urls")),
- Make it a stable release version as it's already well tested.
- Introduce `semantic versioning`_.
- Use zest.releaser for release.
.. _semantic versioning: http://semver.org