* Implement GridUnload setting
* Minor fixes
- Use GetOption instead of deprecated GetBoolDefault.
- Added a missing check for instances in LoadMap
- Replaced some numbers with global defines
* Possible crashfix + minor improvements
- Initialized initialOrientation which I had forgotten (likely cause of crash)
- Readded a previous check in UpdateSplineMovement
- Made i_objectsToRemove and i_worldObjects tos sets as they were previously, instead of unordered_set.
* Update worldserver.conf.dist
* Fix high CPU usage with preload grid enabled.
This should be it.