Wipe old state after upgrade and remove now unneeded upgrade instructions
Move position delta calculation to Geometry subsystem
Update callers to new location
Remove obsolete instructions for thing upgrade
Add privilege for Geometry code
Reinstate access checks on geometry processing
Update to new fix in klib api
Don't forget to boot Geometry with Game on cold boot
...was I stoned or something?
Geometry depends on Thing
Lock up relations mapping
Don't crash removing an expired callout