Pickup: Fixed a possible crash when a pickup went up above the world.
Pickup: Fixed a possible crash when a pickup went up above the world.

git-svn-id: ffe80d23790c2318db4f9b6ad70c6163efa9c8e4@1428 0a769ca7-a7f5-676a-18bf-c427514a06d6

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