Merge branch 'qp_middleware_pattern' into expand_join_tables

resources/frontend_client/app/card/card.charting.js

resources/frontend_client/app/query_builder/saver.react.js

...ontend_client/app/query_builder/selection_module.react.js

.../frontend_client/app/query_builder/visualization.react.js

src/metabase/api/meta/db.clj

src/metabase/api/meta/table.clj

src/metabase/api/session.clj

src/metabase/driver.clj

src/metabase/driver/generic_sql/query_processor.clj

src/metabase/driver/mongo/query_processor.clj

src/metabase/driver/query_processor.clj

src/metabase/driver/query_processor/expand.clj

src/metabase/models/common.clj

src/metabase/models/field.clj

src/metabase/models/table.clj

test/metabase/api/meta/db_test.clj

test/metabase/api/meta/table_test.clj

test/metabase/api/session_test.clj

test/metabase/driver/query_processor_test.clj