[development] Cleaner and more consistent code.

A while ago I suggested on d.o. to remove either db_fetch_row or db_fetch_object. This would result in cleaner code, more consistent function signatures and hooks. At my current work this is included in the coding conventions, we only use mysql_fetch_object(). I'm posting this to the development mailing because I am interested in what you, as developers, think about this. The original suggestion: http://drupal.org/node/158115 Example of an inconsistent hook: http://drupal.org/node/124141