The $subject commit broke internal_schema_cache_sleep for other tests.
This reverts the order change, but keeps the scaling by x1000 to ms and
thus changes other users of this setting to the new scale.
* new --replica option to `postgrest-with-postgresql-*`
* new command `postgrest-test-replica`
* new sanity tests on test_replica.py
* add postgrest-test-replica to postgrest-check and postgrest-coverage
steve-chavez