Completely reviewed and refactored tests to support both CKAN 2.2/2.3,
geoalchemy 1/2 and PostGIS 1/2 (TODO test on PostGIS 1.5)
Removed all references to legacy ckan tests, and removed old or
incomplete tests.
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!