Issue #2848815 by mondrake, voleger, gaurav.kapoor, jeetendrakumar, Sharique, vidhatanand, techtud, cilefen, andypost:  Replace all calls to db_next_id, which is deprecated

Issue #2848821 by voleger, harsha012, vidhatanand, Sharique, alexpott, mondrake: Replace all calls to db_close, which is deprecated

Issue #2848820 by jeetendrakumar, andypost, mondrake, vidhatanand: Replace all calls to db_transaction, which is deprecated

Issue #2848817 by voleger, andypost, hgunicamp, JacobSanford, techtud, alexpott, vidhatanand, Sharique, JayKandari, kiamlaluno, cilefen, borisson_: Replace all calls to db_table_exists, which is deprecated

Issue #2848822 by jeetendrakumar, juanjesustrigo, vidhatanand: Replace all calls to db_create_table, which is deprecated