• Add support for Azure Database for PostgreSQL
• Add support for Google Cloud SQL
• Use pg_has_role to determine pg_monitor membership
  • This improves handling of nested memberships, which previously were not
    detected correctly
• Generalize almost-superuser detection to support Azure and Cloud SQL better
• Add support for running "--test --reload" to test and reload if successful
  • This makes it easier to not forget reloading the collector after making
    a change