Allow socket connections when using MySQLi
Allow socket connections when using PDO/MySQL
Fix custom error handler
Don't translate the doing it wrong message. Maybe later
Add query_result method to the drivers. See #20
Fix mistake in PDO query_result()
Don't extend wpdb anymore. Fixes a few out of date changes.

Fixes flush that called parent that had mysql_* reference in it.
Synced with Changeset 27072. Fixes #20
Update to Changeset 27073. See 19
Add missing comment. Fixes #19