Key update to prevent possible slow query from a large session table.

Signed-off-by: Sven Rissmann <creaworld-media@gmx.de>
Update to Upgrade.php and index.php to get th elatest db change.

Signed-off-by: Sven Rissmann <creaworld-media@gmx.de>
Fix that has broken the updatescript.

Signed-off-by: Sven Rissmann <creaworld-media@gmx.de>
Merge pull request #19 from Pandos/dev

Key update to prevent possible slow query from a large session table -- when doing session writing or garbage collection.