Added permissions for the AutoFuel & AutoSplit features.
Added an option "Disable status panel" to disable the status panel.
Now when the option "Only the owner can upgrade the furnace" is enabled, only the owner of the furnace will be able to remove it if it has been upgraded.
- If only the autosplit or autofuel options are the furnace modifications, it will not be counted as an "upgrade".
Some minor things have been changed in the UI.