DB-misc-37a13.1: Artifacts moved from `users` table to `unit` table. Also deleted unused technology fields from `users` table
INT-misc-37a13.2: Added core type to Planet Overview page (simple) and to Empire Overview page (color-coded)
UPD-misc-37a13.4: Changed updater only to run from admin console. Reverted previous patch index changes
UPD-misc-37a13.5: Changed update server info for non-admins and added link to start update for admins