Udata-ckan

- Test against a real CKAN instance [23](https://github.com/opendatateam/udata-ckan/pull/23)
- Allows to filter on Organizations and Tags [26](https://github.com/opendatateam/udata-ckan/pull/26)
- Register `ckan:` prefixed extras [28](https://github.com/opendatateam/udata-ckan/pull/28)

- Fix packaging [2](https://github.com/opendatateam/udata-ckan/pull/2)
- Make use of [udata pytest plugin](opendatateam/udata1400) [3](https://github.com/opendatateam/udata-ckan/pull/3)
- Enable the `ckan` plugin in test (plugin needs to be enabled to use the harvester) [8](https://github.com/opendatateam/udata-ckan/pull/8)

- Initial release