Prior to the merging of the new spatial harvesters, the existing ones
based on Gemini and UKLP have been moved to their own namespace
(ckanext.spatial.harvesters.gemini). The plugin points have been updated
so users currently using these harvesters will still be able to use them
as normal.
The base harvester (SpatialHarvester) has been updated with new methods,
most significally '_get_package_dict' and 'import_stage'. Note that
SpatialHarvester now extends HarvesterBase on ckanext-harvest, which had
some of its methods updated.
TODO: still some geo.data.gov specific bits!
Add new mandatory fields when creating sources, status dict has new
keys, CKAN lower cases formats, take into account harvest source
datasets.
Added a local getcapabilities response to avoid remote 404s.
Note that the TestValidation tests need to be fixed, as 27c4ee81e
removed the validation from the gather stage.