Execute a simple db query.

Include by one of:

    $this->execPieceByName('ff_InitUtilities');
    $this->execPieceByName('ff_SubmitUtilities');
    if (!function_exists('ff_query')) $this->execPieceByName('ff_query');

Call syntax:

    [$newid = ] ff_query($sql [, $insert = 0]);

    $sql:    Sql statement to call
    $insert: 1 = return key of auto column when inserting rows
    $newid:  The key of the new row.