* Do all list building and freeing outside of the transaction to keep it
  as short as possible.
* Remove ability to blacklist without transactions as we now only
  support InnoDB/transactional engines with proper relations.
* No need to turn autocommit off; BEGIN TRANSACTION operates regardless
  of this setting.

Signed-off-by: Dan McGee <dan@archlinux.org>
Signed-off-by: Lukas Fleischer <archlinux@cryptocrack.de>