Both procs are now generalized, and accept a DBConnection object as an argument. Due to this generalization, all instances of `establish_db_connection()` must be renamed to `establish_db_connection(dbcon)`.
Also added variable `failed_connections` to the definition of DBConnection.
Pulls over the SQL based controller for automatically publishing news articles, and ties it to the process-scheduler. Also refractored it a little from the initial implementation in oldcode.
