#124: Reorging cache logic to start troubleshooting the multiplayer issues with stairs.
#124: Localizing more caching logic to figure this out.
#124: Caching is mostly split from the many places that it touched. Still have this bug, but am getting closer to a resolution.
#124: Caching appears to work as expected now, players no longer disappear when going downstairs.
Fix #124: Removing debugging logging that was needed to troubleshoot that issue.