Add a view named admin_unit_simplified_global_view, for use as a GeoServer layer (rather than having to define a view at the GeoServer level).
Update mappings between healthmap_country and country.
Change location.passed_qc_stage to a boolean column has_passed_qc (with subsequent code and test data changes).
Merge pull request #87 from SEEG-Oxford/175-qc-tidy-ups-2

QC tidy-ups (part 2)