Last param is callback function, receiving err + result, no need to
keep passing two functions, the query handler and the final callback.
It should be easier to understand now as query handler was in a position
where it had to know about receiving a callback, that was exposing an
implementation detail of PgQueryRunner.
Move setDBAuth and setDBConn to PgConnection entity
- It uses cartodb-redis to retrieve datasource configuration
Start using it in ServerOptions, TemplateMaps and QueryTablesApi
QueryTablesApi don't receive anymore the connection/credentials
- It will always use an authenticated query to retrieve last update
- That will allow to query affected private tables last update
Raul Ochoa