change database name to be more general
add simple test for report filters and add field property to spec
choice list validation and tests
better filter type validation and tests
better required field handling and tests for report filters
unused import
make report spec validation not depend on DB, test and fix sample config
remove no-longer-valid-test and no-longer-necessary initializations
add support for named filters
make indicator spec validation stricter
use nicer assertRaises syntax