Change expected error code for backend crash. cartodb-psql 0.4.0 returns 500 error when it's not possible to connect to PostgreSQL.
Change expected error code for backend crash. cartodb-psql 0.4.0
returns 500 error when it's not possible to connect to PostgreSQL.

dbirchak/CartoDB-SQL-API,dbirchak/CartoDB-SQL-API,dbirchak/CartoDB-SQL-API,calvinmetcalf/CartoDB-SQL-API,calvinmetcalf/CartoDB-SQL-API,dbirchak/CartoDB-SQL-API,CartoDB/CartoDB-SQL-API,CartoDB/CartoDB-SQL-API,calvinmetcalf/CartoDB-SQL-API,calvinmetcalf/CartoDB-SQL-API