Update consumption values of assisters when enhancing
Another take on the consumption bug

Needs extensively testing before going live
Fixed bug with submerged air wrecks

Air wrecks sank to seabottom and then jumped up to surface.

Tested all kind of wreck behavior and seems to be working overall now
Added FACTORY to Megalith (same as Fatboy)

Makes it possible to queue up orders before it's built
Added BOMBER category to Ahwassa

Fixes #166
Keep unit.oldowner at unit transfer

The oldowner-field wasn't replicated at unit transfer-

Should hopefully take care of #183