Suppress expected error messages in tests; fix broken tests

docs/api-documentation.md

src/metabase/api/permissions.clj

src/metabase/api/session.clj

src/metabase/db.clj

src/metabase/models/field_values.clj

src/metabase/models/params.clj

src/metabase/models/permissions.clj

src/metabase/query_processor.clj

src/metabase/task/sync_databases.clj

test/metabase/api/automagic_dashboards_test.clj

test/metabase/api/card_test.clj

test/metabase/api/database_test.clj

test/metabase/api/dataset_test.clj

test/metabase/api/embed_test.clj

test/metabase/api/field_test.clj

test/metabase/api/pulse_test.clj

test/metabase/api/session_test.clj

test/metabase/api/table_test.clj

test/metabase/automagic_dashboards/comparison_test.clj

test/metabase/driver/druid_test.clj