cWorld:ChunkStay() accepts nils as callbacks.
cWorld:ChunkStay() accepts nils as callbacks.

Also removed leftover debug logging.

MuhammadWang/MCServer,Haxi52/cuberite,nicodinh/cuberite,birkett/cuberite,MuhammadWang/MCServer,guijun/MCServer,zackp30/cuberite,SamOatesPlugins/cuberite,nounoursheureux/MCServer,Altenius/cuberite,guijun/MCServer,nicodinh/cuberite,birkett/MCServer,electromatter/cuberite,johnsoch/cuberite,nichwall/cuberite,guijun/MCServer,jammet/MCServer,mc-server/MCServer,Tri125/MCServer,Altenius/cuberite,bendl/cuberite,marvinkopf/cuberite,electromatter/cuberite,mmdk95/cuberite,nicodinh/cuberite,nevercast/cuberite,Schwertspize/cuberite,nichwall/cuberite,jammet/MCServer,QUSpilPrgm/cuberite,Fighter19/cuberite,tonibm19/cuberite,birkett/MCServer,HelenaKitty/EbooMC,Howaner/MCServer,zackp30/cuberite,jammet/MCServer,thetaeo/cuberite,nevercast/cuberite,marvinkopf/cuberite,Fighter19/cuberite,guijun/MCServer,linnemannr/MCServer,johnsoch/cuberite,johnsoch/cuberite,kevinr/cuberite,birkett/cuberite,kevinr/cuberite,Fighter19/cuberite,marvinkopf/cuberite,thetaeo/cuberite,johnsoch/cuberite,birkett/MCServer,MuhammadWang/MCServer,mc-server/MCServer,nicodinh/cuberite,ionux/MCServer,mjssw/cuberite,SamOatesPlugins/cuberite,mc-server/MCServer,HelenaKitty/EbooMC,nounoursheureux/MCServer,linnemannr/MCServer,nichwall/cuberite,linnemannr/MCServer,birkett/cuberite,Howaner/MCServer,Fighter19/cuberite,birkett/cuberite,ionux/MCServer,marvinkopf/cuberite,tonibm19/cuberite,QUSpilPrgm/cuberite,Haxi52/cuberite,nevercast/cuberite,birkett/cuberite,mjssw/cuberite,zackp30/cuberite,electromatter/cuberite,Altenius/cuberite,mc-server/MCServer,HelenaKitty/EbooMC,mc-server/MCServer,Tri125/MCServer,MuhammadWang/MCServer,Howaner/MCServer,Frownigami1/cuberite,mmdk95/cuberite,mc-server/MCServer,jammet/MCServer,johnsoch/cuberite,bendl/cuberite,Tri125/MCServer,mmdk95/cuberite,Schwertspize/cuberite,zackp30/cuberite,bendl/cuberite,thetaeo/cuberite,jammet/MCServer,mmdk95/cuberite,MuhammadWang/MCServer,nicodinh/cuberite,kevinr/cuberite,bendl/cuberite,nounoursheureux/MCServer,QUSpilPrgm/cuberite,Altenius/cuberite,nounoursheureux/MCServer,Fighter19/cuberite,linnemannr/MCServer,Schwertspize/cuberite,nounoursheureux/MCServer,electromatter/cuberite,kevinr/cuberite,electromatter/cuberite,tonibm19/cuberite,Schwertspize/cuberite,nevercast/cuberite,Haxi52/cuberite,ionux/MCServer,guijun/MCServer,nichwall/cuberite,tonibm19/cuberite,nounoursheureux/MCServer,Haxi52/cuberite,guijun/MCServer,marvinkopf/cuberite,mmdk95/cuberite,Haxi52/cuberite,jammet/MCServer,Howaner/MCServer,QUSpilPrgm/cuberite,SamOatesPlugins/cuberite,mjssw/cuberite,Howaner/MCServer,Fighter19/cuberite,Schwertspize/cuberite,mjssw/cuberite,electromatter/cuberite,zackp30/cuberite,HelenaKitty/EbooMC,SamOatesPlugins/cuberite,Frownigami1/cuberite,kevinr/cuberite,Howaner/MCServer,ionux/MCServer,QUSpilPrgm/cuberite,mjssw/cuberite,zackp30/cuberite,tonibm19/cuberite,thetaeo/cuberite,nevercast/cuberite,birkett/MCServer,linnemannr/MCServer,nichwall/cuberite,Frownigami1/cuberite,tonibm19/cuberite,SamOatesPlugins/cuberite,bendl/cuberite,kevinr/cuberite,birkett/MCServer,Tri125/MCServer,thetaeo/cuberite,linnemannr/MCServer,marvinkopf/cuberite,QUSpilPrgm/cuberite,Altenius/cuberite,nichwall/cuberite,Frownigami1/cuberite,Tri125/MCServer,birkett/MCServer,mjssw/cuberite,thetaeo/cuberite,nicodinh/cuberite,Frownigami1/cuberite,ionux/MCServer,Haxi52/cuberite,birkett/cuberite,HelenaKitty/EbooMC,ionux/MCServer,nevercast/cuberite,Tri125/MCServer,mmdk95/cuberite