Eliminate race condition in cRoot::FindAndDoWithPlayer
Eliminate race condition in cRoot::FindAndDoWithPlayer

Avoid a race condition where a player gets deleted during the FindAndDoWithPlayer callback by moving the callback into DoWithPlayer.
mjssw/cuberite,mc-server/MCServer,mmdk95/cuberite,mjssw/cuberite,nichwall/cuberite,nichwall/cuberite,electromatter/cuberite,zackp30/cuberite,Haxi52/cuberite,electromatter/cuberite,linnemannr/MCServer,birkett/cuberite,nevercast/cuberite,johnsoch/cuberite,zackp30/cuberite,johnsoch/cuberite,HelenaKitty/EbooMC,Haxi52/cuberite,mmdk95/cuberite,nevercast/cuberite,nicodinh/cuberite,birkett/cuberite,tonibm19/cuberite,linnemannr/MCServer,birkett/MCServer,nichwall/cuberite,Haxi52/cuberite,birkett/MCServer,SamOatesPlugins/cuberite,nounoursheureux/MCServer,mc-server/MCServer,linnemannr/MCServer,QUSpilPrgm/cuberite,bendl/cuberite,thetaeo/cuberite,Altenius/cuberite,QUSpilPrgm/cuberite,marvinkopf/cuberite,johnsoch/cuberite,bendl/cuberite,Tri125/MCServer,Frownigami1/cuberite,nevercast/cuberite,nicodinh/cuberite,johnsoch/cuberite,electromatter/cuberite,Fighter19/cuberite,Howaner/MCServer,HelenaKitty/EbooMC,electromatter/cuberite,Haxi52/cuberite,nichwall/cuberite,nounoursheureux/MCServer,kevinr/cuberite,birkett/MCServer,marvinkopf/cuberite,thetaeo/cuberite,thetaeo/cuberite,HelenaKitty/EbooMC,tonibm19/cuberite,zackp30/cuberite,Tri125/MCServer,Frownigami1/cuberite,SamOatesPlugins/cuberite,mmdk95/cuberite,marvinkopf/cuberite,kevinr/cuberite,mjssw/cuberite,birkett/MCServer,Schwertspize/cuberite,Howaner/MCServer,Fighter19/cuberite,Haxi52/cuberite,ionux/MCServer,mmdk95/cuberite,Schwertspize/cuberite,kevinr/cuberite,Tri125/MCServer,ionux/MCServer,mc-server/MCServer,Fighter19/cuberite,Howaner/MCServer,Howaner/MCServer,Tri125/MCServer,Howaner/MCServer,mjssw/cuberite,bendl/cuberite,QUSpilPrgm/cuberite,ionux/MCServer,guijun/MCServer,QUSpilPrgm/cuberite,nounoursheureux/MCServer,Fighter19/cuberite,ionux/MCServer,birkett/cuberite,linnemannr/MCServer,Haxi52/cuberite,nichwall/cuberite,birkett/cuberite,QUSpilPrgm/cuberite,Tri125/MCServer,thetaeo/cuberite,Altenius/cuberite,johnsoch/cuberite,kevinr/cuberite,mmdk95/cuberite,thetaeo/cuberite,linnemannr/MCServer,Altenius/cuberite,nicodinh/cuberite,HelenaKitty/EbooMC,guijun/MCServer,zackp30/cuberite,tonibm19/cuberite,kevinr/cuberite,birkett/cuberite,marvinkopf/cuberite,nevercast/cuberite,nevercast/cuberite,mjssw/cuberite,nicodinh/cuberite,thetaeo/cuberite,guijun/MCServer,birkett/cuberite,Schwertspize/cuberite,nounoursheureux/MCServer,marvinkopf/cuberite,guijun/MCServer,Schwertspize/cuberite,Fighter19/cuberite,mmdk95/cuberite,Tri125/MCServer,Altenius/cuberite,bendl/cuberite,mjssw/cuberite,electromatter/cuberite,nicodinh/cuberite,linnemannr/MCServer,nicodinh/cuberite,mc-server/MCServer,HelenaKitty/EbooMC,tonibm19/cuberite,birkett/MCServer,SamOatesPlugins/cuberite,SamOatesPlugins/cuberite,electromatter/cuberite,zackp30/cuberite,nichwall/cuberite,nevercast/cuberite,Altenius/cuberite,tonibm19/cuberite,tonibm19/cuberite,kevinr/cuberite,Fighter19/cuberite,nounoursheureux/MCServer,Schwertspize/cuberite,Frownigami1/cuberite,Frownigami1/cuberite,nounoursheureux/MCServer,ionux/MCServer,mc-server/MCServer,birkett/MCServer,zackp30/cuberite,QUSpilPrgm/cuberite,ionux/MCServer,guijun/MCServer,Frownigami1/cuberite,SamOatesPlugins/cuberite,bendl/cuberite,Howaner/MCServer,marvinkopf/cuberite,guijun/MCServer,mc-server/MCServer