cTracer doesn't attempt a trace above the world.
cTracer doesn't attempt a trace above the world.

This fixes some crashes with out-of-world entities.

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