- Modified some functions so they can accept serverID and FQDN
- Modified some functions so they can accept nodeID and FQDN
- Add command show_backup_server_job_definitions
- Add command show_pgsql_node_job_definitions
- Add command show_database_job_definitions
- Get default config values via get_default_*_parameter() functions
- Add some RAISE EXCEPTION code in some pl/pgsql functions