Fixed sprinting in 1.7 protocol.
Fixed sprinting in 1.7 protocol.

Fixes #324

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